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-rw-r--r--ggml-rpc.cpp1178
1 files changed, 0 insertions, 1178 deletions
diff --git a/ggml-rpc.cpp b/ggml-rpc.cpp
deleted file mode 100644
index b01ad267..00000000
--- a/ggml-rpc.cpp
+++ /dev/null
@@ -1,1178 +0,0 @@
-#include "ggml-rpc.h"
-#include "ggml.h"
-#include "ggml-backend-impl.h"
-
-#include <cinttypes>
-#include <string>
-#include <vector>
-#include <memory>
-#include <mutex>
-#include <unordered_map>
-#include <unordered_set>
-#ifdef _WIN32
-# define WIN32_LEAN_AND_MEAN
-# ifndef NOMINMAX
-# define NOMINMAX
-# endif
-# include <windows.h>
-# include <winsock2.h>
-#else
-# include <arpa/inet.h>
-# include <sys/socket.h>
-# include <sys/types.h>
-# include <netinet/in.h>
-# include <netinet/tcp.h>
-# include <netdb.h>
-# include <unistd.h>
-#endif
-#include <string.h>
-
-#define UNUSED GGML_UNUSED
-
-#define GGML_DEBUG 0
-#if (GGML_DEBUG >= 1)
-#define GGML_PRINT_DEBUG(...) printf(__VA_ARGS__)
-#else
-#define GGML_PRINT_DEBUG(...)
-#endif
-
-#ifdef _WIN32
-typedef SOCKET sockfd_t;
-using ssize_t = __int64;
-#else
-typedef int sockfd_t;
-#endif
-
-// cross-platform socket
-struct socket_t {
- sockfd_t fd;
- socket_t(sockfd_t fd) : fd(fd) {}
- ~socket_t() {
- GGML_PRINT_DEBUG("[%s] closing socket %d\n", __func__, this->fd);
-#ifdef _WIN32
- closesocket(this->fd);
-#else
- close(this->fd);
-#endif
- }
-};
-
-// ggml_tensor is serialized into rpc_tensor
-#pragma pack(push, 1)
-struct rpc_tensor {
- uint64_t id;
- uint32_t type;
- uint64_t buffer;
- uint32_t ne[GGML_MAX_DIMS];
- uint32_t nb[GGML_MAX_DIMS];
- uint32_t op;
- int32_t op_params[GGML_MAX_OP_PARAMS / sizeof(int32_t)];
- int32_t flags;
- uint64_t src[GGML_MAX_SRC];
- uint64_t view_src;
- uint64_t view_offs;
- uint64_t data;
- char name[GGML_MAX_NAME];
-
- char padding[4];
-};
-#pragma pack(pop)
-
-static_assert(sizeof(rpc_tensor) % 8 == 0, "rpc_tensor size must be multiple of 8");
-
-// RPC commands
-enum rpc_cmd {
- ALLOC_BUFFER = 0,
- GET_ALIGNMENT,
- GET_MAX_SIZE,
- BUFFER_GET_BASE,
- FREE_BUFFER,
- BUFFER_CLEAR,
- SET_TENSOR,
- GET_TENSOR,
- COPY_TENSOR,
- GRAPH_COMPUTE,
- GET_DEVICE_MEMORY,
-};
-
-// RPC data structures
-
-static ggml_guid_t ggml_backend_rpc_guid() {
- static ggml_guid guid = {0x99, 0x68, 0x5b, 0x6c, 0xd2, 0x83, 0x3d, 0x24, 0x25, 0x36, 0x72, 0xe1, 0x5b, 0x0e, 0x14, 0x03};
- return &guid;
-}
-
-struct ggml_backend_rpc_buffer_type_context {
- std::string endpoint;
- std::string name;
- size_t alignment;
- size_t max_size;
-};
-
-struct ggml_backend_rpc_context {
- std::string endpoint;
- std::string name;
-};
-
-struct ggml_backend_rpc_buffer_context {
- std::shared_ptr<socket_t> sock;
- std::unordered_map<ggml_backend_buffer_t, void *> base_cache;
- uint64_t remote_ptr;
- std::string name;
-};
-
-// RPC helper functions
-
-static std::shared_ptr<socket_t> make_socket(sockfd_t fd) {
-#ifdef _WIN32
- if (fd == INVALID_SOCKET) {
- return nullptr;
- }
-#else
- if (fd < 0) {
- return nullptr;
- }
-#endif
- return std::make_shared<socket_t>(fd);
-}
-
-static bool set_no_delay(sockfd_t sockfd) {
- int flag = 1;
- // set TCP_NODELAY to disable Nagle's algorithm
- int ret = setsockopt(sockfd, IPPROTO_TCP, TCP_NODELAY, (char *)&flag, sizeof(int));
- return ret == 0;
-}
-
-static bool set_reuse_addr(sockfd_t sockfd) {
- int flag = 1;
- int ret = setsockopt(sockfd, SOL_SOCKET, SO_REUSEADDR, (char *)&flag, sizeof(int));
- return ret == 0;
-}
-
-static std::shared_ptr<socket_t> socket_connect(const char * host, int port) {
- struct sockaddr_in addr;
- auto sockfd = socket(AF_INET, SOCK_STREAM, 0);
- auto sock_ptr = make_socket(sockfd);
- if (sock_ptr == nullptr) {
- return nullptr;
- }
- if (!set_no_delay(sockfd)) {
- fprintf(stderr, "Failed to set TCP_NODELAY\n");
- return nullptr;
- }
- addr.sin_family = AF_INET;
- addr.sin_port = htons(port);
- struct hostent * server = gethostbyname(host);
- if (server == NULL) {
- fprintf(stderr, "Cannot resolve host '%s'\n", host);
- return nullptr;
- }
- memcpy(&addr.sin_addr.s_addr, server->h_addr, server->h_length);
- if (connect(sock_ptr->fd, (struct sockaddr *)&addr, sizeof(addr)) < 0) {
- return nullptr;
- }
- return sock_ptr;
-}
-
-static std::shared_ptr<socket_t> socket_accept(sockfd_t srv_sockfd) {
- auto client_socket_fd = accept(srv_sockfd, NULL, NULL);
- auto client_socket = make_socket(client_socket_fd);
- if (client_socket == nullptr) {
- return nullptr;
- }
- if (!set_no_delay(client_socket_fd)) {
- fprintf(stderr, "Failed to set TCP_NODELAY\n");
- return nullptr;
- }
- return client_socket;
-}
-
-static std::shared_ptr<socket_t> create_server_socket(const char * host, int port) {
- auto sockfd = socket(AF_INET, SOCK_STREAM, 0);
- auto sock = make_socket(sockfd);
- if (sock == nullptr) {
- return nullptr;
- }
- if (!set_reuse_addr(sockfd)) {
- fprintf(stderr, "Failed to set SO_REUSEADDR\n");
- return nullptr;
- }
- struct sockaddr_in serv_addr;
- serv_addr.sin_family = AF_INET;
- serv_addr.sin_addr.s_addr = inet_addr(host);
- serv_addr.sin_port = htons(port);
-
- if (bind(sockfd, (struct sockaddr *) &serv_addr, sizeof(serv_addr)) < 0) {
- return nullptr;
- }
- if (listen(sockfd, 1) < 0) {
- return nullptr;
- }
- return sock;
-}
-
-static bool send_data(sockfd_t sockfd, const void * data, size_t size) {
- size_t bytes_sent = 0;
- while (bytes_sent < size) {
- ssize_t n = send(sockfd, (const char *)data + bytes_sent, size - bytes_sent, 0);
- if (n < 0) {
- return false;
- }
- bytes_sent += n;
- }
- return true;
-}
-
-static bool recv_data(sockfd_t sockfd, void * data, size_t size) {
- size_t bytes_recv = 0;
- while (bytes_recv < size) {
- ssize_t n = recv(sockfd, (char *)data + bytes_recv, size - bytes_recv, 0);
- if (n <= 0) {
- return false;
- }
- bytes_recv += n;
- }
- return true;
-}
-
-static bool parse_endpoint(const std::string & endpoint, std::string & host, int & port) {
- size_t pos = endpoint.find(':');
- if (pos == std::string::npos) {
- return false;
- }
- host = endpoint.substr(0, pos);
- port = std::stoi(endpoint.substr(pos + 1));
- return true;
-}
-
-// RPC request : | rpc_cmd (1 byte) | request_size (8 bytes) | request_data (request_size bytes) |
-// RPC response: | response_size (8 bytes) | response_data (response_size bytes) |
-static bool send_rpc_cmd(const std::shared_ptr<socket_t> & sock, enum rpc_cmd cmd, const std::vector<uint8_t> & input, std::vector<uint8_t> & output) {
- uint8_t cmd_byte = cmd;
- if (!send_data(sock->fd, &cmd_byte, sizeof(cmd_byte))) {
- return false;
- }
- uint64_t input_size = input.size();
- if (!send_data(sock->fd, &input_size, sizeof(input_size))) {
- return false;
- }
- if (!send_data(sock->fd, input.data(), input.size())) {
- return false;
- }
- uint64_t output_size;
- if (!recv_data(sock->fd, &output_size, sizeof(output_size))) {
- return false;
- }
- if (output_size == 0) {
- output.clear();
- return true;
- }
- output.resize(output_size);
- if (!recv_data(sock->fd, output.data(), output_size)) {
- return false;
- }
- return true;
-}
-
-// RPC client-side implementation
-
-static std::shared_ptr<socket_t> get_socket(const std::string & endpoint) {
- static std::mutex mutex;
- std::lock_guard<std::mutex> lock(mutex);
- static std::unordered_map<std::string, std::weak_ptr<socket_t>> sockets;
- static bool initialized = false;
-
- auto it = sockets.find(endpoint);
- if (it != sockets.end()) {
- if (auto sock = it->second.lock()) {
- return sock;
- }
- }
- std::string host;
- int port;
- if (!parse_endpoint(endpoint, host, port)) {
- return nullptr;
- }
-#ifdef _WIN32
- if (!initialized) {
- WSADATA wsaData;
- int res = WSAStartup(MAKEWORD(2, 2), &wsaData);
- if (res != 0) {
- return nullptr;
- }
- initialized = true;
- }
-#else
- UNUSED(initialized);
-#endif
- auto sock = socket_connect(host.c_str(), port);
- if (sock == nullptr) {
- return nullptr;
- }
- GGML_PRINT_DEBUG("[%s] connected to %s, sockfd=%d\n", __func__, endpoint.c_str(), sock->fd);
- sockets[endpoint] = sock;
- return sock;
-}
-
-GGML_CALL static const char * ggml_backend_rpc_buffer_get_name(ggml_backend_buffer_t buffer) {
- ggml_backend_rpc_buffer_context * ctx = (ggml_backend_rpc_buffer_context *)buffer->context;
- return ctx->name.c_str();
-}
-
-GGML_CALL static void ggml_backend_rpc_buffer_free_buffer(ggml_backend_buffer_t buffer) {
- ggml_backend_rpc_buffer_context * ctx = (ggml_backend_rpc_buffer_context *)buffer->context;
- // input serialization format: | remote_ptr (8 bytes) |
- std::vector<uint8_t> input(sizeof(uint64_t), 0);
- uint64_t remote_ptr = ctx->remote_ptr;
- memcpy(input.data(), &remote_ptr, sizeof(remote_ptr));
- std::vector<uint8_t> output;
- bool status = send_rpc_cmd(ctx->sock, FREE_BUFFER, input, output);
- GGML_ASSERT(status);
- GGML_ASSERT(output.empty());
- delete ctx;
-}
-
-GGML_CALL static void * ggml_backend_rpc_buffer_get_base(ggml_backend_buffer_t buffer) {
- ggml_backend_rpc_buffer_context * ctx = (ggml_backend_rpc_buffer_context *)buffer->context;
- if (ctx->base_cache.find(buffer) != ctx->base_cache.end()) {
- return ctx->base_cache[buffer];
- }
- // input serialization format: | remote_ptr (8 bytes) |
- std::vector<uint8_t> input(sizeof(uint64_t), 0);
- uint64_t remote_ptr = ctx->remote_ptr;
- memcpy(input.data(), &remote_ptr, sizeof(remote_ptr));
- std::vector<uint8_t> output;
- bool status = send_rpc_cmd(ctx->sock, BUFFER_GET_BASE, input, output);
- GGML_ASSERT(status);
- GGML_ASSERT(output.size() == sizeof(uint64_t));
- // output serialization format: | base_ptr (8 bytes) |
- uint64_t base_ptr;
- memcpy(&base_ptr, output.data(), sizeof(base_ptr));
- void * base = reinterpret_cast<void *>(base_ptr);
- ctx->base_cache[buffer] = base;
- return base;
-}
-
-static rpc_tensor serialize_tensor(const ggml_tensor * tensor) {
- rpc_tensor result;
- result.id = reinterpret_cast<uint64_t>(tensor);
- result.type = tensor->type;
- if (tensor->buffer) {
- ggml_backend_buffer_t buffer = tensor->buffer;
- ggml_backend_rpc_buffer_context * ctx = (ggml_backend_rpc_buffer_context *)buffer->context;
- result.buffer = ctx->remote_ptr;
- } else {
- result.buffer = 0;
- }
- for (uint32_t i = 0; i < GGML_MAX_DIMS; i++) {
- result.ne[i] = tensor->ne[i];
- result.nb[i] = tensor->nb[i];
- }
- result.op = tensor->op;
- for (uint32_t i = 0; i < GGML_MAX_OP_PARAMS / sizeof(int32_t); i++) {
- result.op_params[i] = tensor->op_params[i];
- }
- result.flags = tensor->flags;
- for (uint32_t i = 0; i < GGML_MAX_SRC; i++) {
- result.src[i] = reinterpret_cast<uint64_t>(tensor->src[i]);
- }
- result.view_src = reinterpret_cast<uint64_t>(tensor->view_src);
- result.view_offs = tensor->view_offs;
- result.data = reinterpret_cast<uint64_t>(tensor->data);
- snprintf(result.name, GGML_MAX_NAME, "%s", tensor->name);
- return result;
-}
-
-GGML_CALL static void ggml_backend_rpc_buffer_init_tensor(ggml_backend_buffer_t buffer, ggml_tensor * tensor) {
- UNUSED(buffer);
- if (ggml_is_quantized(tensor->type)) {
- // TODO: this check is due to MATRIX_ROW_PADDING in CUDA and should be generalized
- GGML_ASSERT(tensor->ne[0] % 512 == 0 && "unsupported quantized tensor");
- }
-}
-
-GGML_CALL static void ggml_backend_rpc_buffer_set_tensor(ggml_backend_buffer_t buffer, ggml_tensor * tensor, const void * data, size_t offset, size_t size) {
- ggml_backend_rpc_buffer_context * ctx = (ggml_backend_rpc_buffer_context *)buffer->context;
- // input serialization format: | rpc_tensor | offset (8 bytes) | data (size bytes) |
- size_t input_size = sizeof(rpc_tensor) + sizeof(uint64_t) + size;
- std::vector<uint8_t> input(input_size, 0);
- rpc_tensor rpc_tensor = serialize_tensor(tensor);
- memcpy(input.data(), &rpc_tensor, sizeof(rpc_tensor));
- memcpy(input.data() + sizeof(rpc_tensor), &offset, sizeof(offset));
- memcpy(input.data() + sizeof(rpc_tensor) + sizeof(offset), data, size);
- std::vector<uint8_t> output;
- bool status = send_rpc_cmd(ctx->sock, SET_TENSOR, input, output);
- GGML_ASSERT(status);
-}
-
-GGML_CALL static void ggml_backend_rpc_buffer_get_tensor(ggml_backend_buffer_t buffer, const ggml_tensor * tensor, void * data, size_t offset, size_t size) {
- ggml_backend_rpc_buffer_context * ctx = (ggml_backend_rpc_buffer_context *)buffer->context;
- // input serialization format: | rpc_tensor | offset (8 bytes) | size (8 bytes) |
- int input_size = sizeof(rpc_tensor) + 2*sizeof(uint64_t);
- std::vector<uint8_t> input(input_size, 0);
- rpc_tensor rpc_tensor = serialize_tensor(tensor);
- memcpy(input.data(), &rpc_tensor, sizeof(rpc_tensor));
- memcpy(input.data() + sizeof(rpc_tensor), &offset, sizeof(offset));
- memcpy(input.data() + sizeof(rpc_tensor) + sizeof(offset), &size, sizeof(size));
- std::vector<uint8_t> output;
- bool status = send_rpc_cmd(ctx->sock, GET_TENSOR, input, output);
- GGML_ASSERT(status);
- GGML_ASSERT(output.size() == size);
- // output serialization format: | data (size bytes) |
- memcpy(data, output.data(), size);
-}
-
-GGML_CALL static bool ggml_backend_rpc_buffer_cpy_tensor(ggml_backend_buffer_t buffer, const ggml_tensor * src, ggml_tensor * dst) {
- // check if src and dst are on the same server
- ggml_backend_buffer_t src_buffer = src->buffer;
- ggml_backend_rpc_buffer_context * src_ctx = (ggml_backend_rpc_buffer_context *)src_buffer->context;
- ggml_backend_buffer_t dst_buffer = dst->buffer;
- ggml_backend_rpc_buffer_context * dst_ctx = (ggml_backend_rpc_buffer_context *)dst_buffer->context;
- if (src_ctx->sock != dst_ctx->sock) {
- return false;
- }
- ggml_backend_rpc_buffer_context * ctx = (ggml_backend_rpc_buffer_context *)buffer->context;
- // input serialization format: | rpc_tensor src | rpc_tensor dst |
- int input_size = 2*sizeof(rpc_tensor);
- std::vector<uint8_t> input(input_size, 0);
- rpc_tensor rpc_src = serialize_tensor(src);
- rpc_tensor rpc_dst = serialize_tensor(dst);
- memcpy(input.data(), &rpc_src, sizeof(rpc_src));
- memcpy(input.data() + sizeof(rpc_src), &rpc_dst, sizeof(rpc_dst));
- std::vector<uint8_t> output;
- bool status = send_rpc_cmd(ctx->sock, COPY_TENSOR, input, output);
- GGML_ASSERT(status);
- // output serialization format: | result (1 byte) |
- GGML_ASSERT(output.size() == 1);
- return output[0];
-}
-
-GGML_CALL static void ggml_backend_rpc_buffer_clear(ggml_backend_buffer_t buffer, uint8_t value) {
- ggml_backend_rpc_buffer_context * ctx = (ggml_backend_rpc_buffer_context *)buffer->context;
- // serialization format: | bufptr (8 bytes) | value (1 byte) |
- int input_size = sizeof(uint64_t) + sizeof(uint8_t);
- std::vector<uint8_t> input(input_size, 0);
- memcpy(input.data(), &ctx->remote_ptr, sizeof(ctx->remote_ptr));
- memcpy(input.data() + sizeof(ctx->remote_ptr), &value, sizeof(value));
- std::vector<uint8_t> output;
- bool status = send_rpc_cmd(ctx->sock, BUFFER_CLEAR, input, output);
- GGML_ASSERT(status);
-}
-
-static ggml_backend_buffer_i ggml_backend_rpc_buffer_interface = {
- /* .get_name = */ ggml_backend_rpc_buffer_get_name,
- /* .free_buffer = */ ggml_backend_rpc_buffer_free_buffer,
- /* .get_base = */ ggml_backend_rpc_buffer_get_base,
- /* .init_tensor = */ ggml_backend_rpc_buffer_init_tensor,
- /* .set_tensor = */ ggml_backend_rpc_buffer_set_tensor,
- /* .get_tensor = */ ggml_backend_rpc_buffer_get_tensor,
- /* .cpy_tensor = */ ggml_backend_rpc_buffer_cpy_tensor,
- /* .clear = */ ggml_backend_rpc_buffer_clear,
- /* .reset = */ NULL,
-};
-
-GGML_CALL static const char * ggml_backend_rpc_buffer_type_name(ggml_backend_buffer_type_t buft) {
- ggml_backend_rpc_buffer_type_context * buft_ctx = (ggml_backend_rpc_buffer_type_context *)buft->context;
- return buft_ctx->name.c_str();
-}
-
-GGML_CALL static ggml_backend_buffer_t ggml_backend_rpc_buffer_type_alloc_buffer(ggml_backend_buffer_type_t buft, size_t size) {
- ggml_backend_rpc_buffer_type_context * buft_ctx = (ggml_backend_rpc_buffer_type_context *)buft->context;
- // input serialization format: | size (8 bytes) |
- int input_size = sizeof(uint64_t);
- std::vector<uint8_t> input(input_size, 0);
- memcpy(input.data(), &size, sizeof(size));
- std::vector<uint8_t> output;
- auto sock = get_socket(buft_ctx->endpoint);
- bool status = send_rpc_cmd(sock, ALLOC_BUFFER, input, output);
- GGML_ASSERT(status);
- GGML_ASSERT(output.size() == 2*sizeof(uint64_t));
- // output serialization format: | remote_ptr (8 bytes) | remote_size (8 bytes) |
- uint64_t remote_ptr;
- memcpy(&remote_ptr, output.data(), sizeof(remote_ptr));
- size_t remote_size;
- memcpy(&remote_size, output.data() + sizeof(uint64_t), sizeof(remote_size));
- if (remote_ptr != 0) {
- ggml_backend_buffer_t buffer = ggml_backend_buffer_init(buft,
- ggml_backend_rpc_buffer_interface,
- new ggml_backend_rpc_buffer_context{sock, {}, remote_ptr, "RPC[" + std::string(buft_ctx->endpoint) + "]"},
- remote_size);
- return buffer;
- } else {
- return nullptr;
- }
-}
-
-static size_t get_alignment(const std::shared_ptr<socket_t> & sock) {
- // input serialization format: | 0 bytes |
- std::vector<uint8_t> input;
- std::vector<uint8_t> output;
- bool status = send_rpc_cmd(sock, GET_ALIGNMENT, input, output);
- GGML_ASSERT(status);
- GGML_ASSERT(output.size() == sizeof(uint64_t));
- // output serialization format: | alignment (8 bytes) |
- uint64_t alignment;
- memcpy(&alignment, output.data(), sizeof(alignment));
- return alignment;
-}
-
-GGML_CALL static size_t ggml_backend_rpc_buffer_type_get_alignment(ggml_backend_buffer_type_t buft) {
- ggml_backend_rpc_buffer_type_context * buft_ctx = (ggml_backend_rpc_buffer_type_context *)buft->context;
- return buft_ctx->alignment;
-}
-
-static size_t get_max_size(const std::shared_ptr<socket_t> & sock) {
- // input serialization format: | 0 bytes |
- std::vector<uint8_t> input;
- std::vector<uint8_t> output;
- bool status = send_rpc_cmd(sock, GET_MAX_SIZE, input, output);
- GGML_ASSERT(status);
- GGML_ASSERT(output.size() == sizeof(uint64_t));
- // output serialization format: | max_size (8 bytes) |
- uint64_t max_size;
- memcpy(&max_size, output.data(), sizeof(max_size));
- return max_size;
-}
-
-GGML_CALL static size_t ggml_backend_rpc_get_max_size(ggml_backend_buffer_type_t buft) {
- ggml_backend_rpc_buffer_type_context * buft_ctx = (ggml_backend_rpc_buffer_type_context *)buft->context;
- return buft_ctx->max_size;
-}
-
-GGML_CALL static size_t ggml_backend_rpc_buffer_type_get_alloc_size(ggml_backend_buffer_type_t buft, const ggml_tensor * tensor) {
- UNUSED(buft);
- return ggml_nbytes(tensor);
-}
-
-static ggml_backend_buffer_type_i ggml_backend_rpc_buffer_type_interface = {
- /* .get_name = */ ggml_backend_rpc_buffer_type_name,
- /* .alloc_buffer = */ ggml_backend_rpc_buffer_type_alloc_buffer,
- /* .get_alignment = */ ggml_backend_rpc_buffer_type_get_alignment,
- /* .get_max_size = */ ggml_backend_rpc_get_max_size,
- /* .get_alloc_size = */ ggml_backend_rpc_buffer_type_get_alloc_size,
- /* .is_host = */ NULL,
-};
-
-GGML_CALL static const char * ggml_backend_rpc_name(ggml_backend_t backend) {
- ggml_backend_rpc_context * rpc_ctx = (ggml_backend_rpc_context *)backend->context;
-
- return rpc_ctx->name.c_str();
-}
-
-GGML_CALL static void ggml_backend_rpc_free(ggml_backend_t backend) {
- ggml_backend_rpc_context * rpc_ctx = (ggml_backend_rpc_context *)backend->context;
- delete rpc_ctx;
- delete backend;
-}
-
-GGML_CALL static ggml_backend_buffer_type_t ggml_backend_rpc_get_default_buffer_type(ggml_backend_t backend) {
- ggml_backend_rpc_context * ctx = (ggml_backend_rpc_context *)backend->context;
- return ggml_backend_rpc_buffer_type(ctx->endpoint.c_str());
-}
-
-GGML_CALL static void ggml_backend_rpc_synchronize(ggml_backend_t backend) {
- UNUSED(backend);
- // this is no-op because we don't have any async operations
-}
-
-static void add_tensor(ggml_tensor * tensor, std::vector<rpc_tensor> & tensors, std::unordered_set<ggml_tensor*> & visited) {
- if (tensor == nullptr) {
- return;
- }
- if (visited.find(tensor) != visited.end()) {
- return;
- }
- visited.insert(tensor);
- for (int i = 0; i < GGML_MAX_SRC; i++) {
- add_tensor(tensor->src[i], tensors, visited);
- }
- add_tensor(tensor->view_src, tensors, visited);
- tensors.push_back(serialize_tensor(tensor));
-}
-
-static void serialize_graph(const ggml_cgraph * cgraph, std::vector<uint8_t> & output) {
- uint32_t n_nodes = cgraph->n_nodes;
- std::vector<rpc_tensor> tensors;
- std::unordered_set<ggml_tensor*> visited;
- for (uint32_t i = 0; i < n_nodes; i++) {
- add_tensor(cgraph->nodes[i], tensors, visited);
- }
- // serialization format:
- // | n_nodes (4 bytes) | nodes (n_nodes * sizeof(uint64_t) | n_tensors (4 bytes) | tensors (n_tensors * sizeof(rpc_tensor)) |
- uint32_t n_tensors = tensors.size();
- int output_size = sizeof(uint32_t) + n_nodes * sizeof(uint64_t) + sizeof(uint32_t) + n_tensors * sizeof(rpc_tensor);
- output.resize(output_size, 0);
- memcpy(output.data(), &n_nodes, sizeof(n_nodes));
- for (uint32_t i = 0; i < n_nodes; i++) {
- memcpy(output.data() + sizeof(n_nodes) + i * sizeof(uint64_t), &cgraph->nodes[i], sizeof(uint64_t));
- }
- uint32_t * out_ntensors = (uint32_t *)(output.data() + sizeof(n_nodes) + n_nodes * sizeof(uint64_t));
- *out_ntensors = n_tensors;
- rpc_tensor * out_tensors = (rpc_tensor *)(output.data() + sizeof(n_nodes) + n_nodes * sizeof(uint64_t) + sizeof(uint32_t));
- memcpy(out_tensors, tensors.data(), n_tensors * sizeof(rpc_tensor));
-}
-
-GGML_CALL static enum ggml_status ggml_backend_rpc_graph_compute(ggml_backend_t backend, ggml_cgraph * cgraph) {
- ggml_backend_rpc_context * rpc_ctx = (ggml_backend_rpc_context *)backend->context;
- std::vector<uint8_t> input;
- serialize_graph(cgraph, input);
- std::vector<uint8_t> output;
- auto sock = get_socket(rpc_ctx->endpoint);
- bool status = send_rpc_cmd(sock, GRAPH_COMPUTE, input, output);
- GGML_ASSERT(status);
- GGML_ASSERT(output.size() == 1);
- return (enum ggml_status)output[0];
-}
-
-GGML_CALL static bool ggml_backend_rpc_supports_op(ggml_backend_t backend, const ggml_tensor * op) {
- UNUSED(backend);
- UNUSED(op);
- //TODO: call the remote backend and cache the results
- return true;
-}
-
-GGML_CALL static bool ggml_backend_rpc_supports_buft(ggml_backend_t backend, ggml_backend_buffer_type_t buft) {
- if (buft->iface.get_name != ggml_backend_rpc_buffer_type_name) {
- return false;
- }
- ggml_backend_rpc_buffer_type_context * buft_ctx = (ggml_backend_rpc_buffer_type_context *)buft->context;
- ggml_backend_rpc_context * rpc_ctx = (ggml_backend_rpc_context *)backend->context;
- return buft_ctx->endpoint == rpc_ctx->endpoint;
-}
-
-static ggml_backend_i ggml_backend_rpc_interface = {
- /* .get_name = */ ggml_backend_rpc_name,
- /* .free = */ ggml_backend_rpc_free,
- /* .get_default_buffer_type = */ ggml_backend_rpc_get_default_buffer_type,
- /* .set_tensor_async = */ NULL,
- /* .get_tensor_async = */ NULL,
- /* .cpy_tensor_async = */ NULL,
- /* .synchronize = */ ggml_backend_rpc_synchronize,
- /* .graph_plan_create = */ NULL,
- /* .graph_plan_free = */ NULL,
- /* .graph_plan_update = */ NULL,
- /* .graph_plan_compute = */ NULL,
- /* .graph_compute = */ ggml_backend_rpc_graph_compute,
- /* .supports_op = */ ggml_backend_rpc_supports_op,
- /* .supports_buft = */ ggml_backend_rpc_supports_buft,
- /* .offload_op = */ NULL,
- /* .event_new = */ NULL,
- /* .event_free = */ NULL,
- /* .event_record = */ NULL,
- /* .event_wait = */ NULL,
- /* .event_synchronize = */ NULL,
-};
-
-GGML_API GGML_CALL ggml_backend_buffer_type_t ggml_backend_rpc_buffer_type(const char * endpoint) {
- static std::mutex mutex;
- std::lock_guard<std::mutex> lock(mutex);
- // NOTE: buffer types are allocated and never freed; this is by design
- static std::unordered_map<std::string, ggml_backend_buffer_type_t> buft_map;
- auto it = buft_map.find(endpoint);
- if (it != buft_map.end()) {
- return it->second;
- }
- auto sock = get_socket(endpoint);
- if (sock == nullptr) {
- return nullptr;
- }
- size_t alignment = get_alignment(sock);
- size_t max_size = get_max_size(sock);
- ggml_backend_rpc_buffer_type_context * buft_ctx = new ggml_backend_rpc_buffer_type_context {
- /* .endpoint = */ endpoint,
- /* .name = */ "RPC[" + std::string(endpoint) + "]",
- /* .alignment = */ alignment,
- /* .max_size = */ max_size
- };
-
- ggml_backend_buffer_type_t buft = new ggml_backend_buffer_type {
- /* .iface = */ ggml_backend_rpc_buffer_type_interface,
- /* .context = */ buft_ctx
- };
- buft_map[endpoint] = buft;
- return buft;
-}
-
-GGML_CALL ggml_backend_t ggml_backend_rpc_init(const char * endpoint) {
- ggml_backend_rpc_context * ctx = new ggml_backend_rpc_context {
- /* .endpoint = */ endpoint,
- /* .name = */ "RPC[" + std::string(endpoint) + "]",
- };
-
- ggml_backend_t backend = new ggml_backend {
- /* .guid = */ ggml_backend_rpc_guid(),
- /* .interface = */ ggml_backend_rpc_interface,
- /* .context = */ ctx
- };
- return backend;
-}
-
-GGML_API GGML_CALL bool ggml_backend_is_rpc(ggml_backend_t backend) {
- return backend != NULL && ggml_guid_matches(backend->guid, ggml_backend_rpc_guid());
-}
-
-static void get_device_memory(const std::shared_ptr<socket_t> & sock, size_t * free, size_t * total) {
- // input serialization format: | 0 bytes |
- std::vector<uint8_t> input;
- std::vector<uint8_t> output;
- bool status = send_rpc_cmd(sock, GET_DEVICE_MEMORY, input, output);
- GGML_ASSERT(status);
- GGML_ASSERT(output.size() == 2*sizeof(uint64_t));
- // output serialization format: | free (8 bytes) | total (8 bytes) |
- uint64_t free_mem;
- memcpy(&free_mem, output.data(), sizeof(free_mem));
- uint64_t total_mem;
- memcpy(&total_mem, output.data() + sizeof(uint64_t), sizeof(total_mem));
- *free = free_mem;
- *total = total_mem;
-}
-
-GGML_API GGML_CALL void ggml_backend_rpc_get_device_memory(const char * endpoint, size_t * free, size_t * total) {
- auto sock = get_socket(endpoint);
- if (sock == nullptr) {
- *free = 0;
- *total = 0;
- return;
- }
- get_device_memory(sock, free, total);
-}
-
-// RPC server-side implementation
-
-class rpc_server {
-public:
- rpc_server(ggml_backend_t backend) : backend(backend) {}
- ~rpc_server();
-
- bool alloc_buffer(const std::vector<uint8_t> & input, std::vector<uint8_t> & output);
- void get_alignment(std::vector<uint8_t> & output);
- void get_max_size(std::vector<uint8_t> & output);
- bool buffer_get_base(const std::vector<uint8_t> & input, std::vector<uint8_t> & output);
- bool free_buffer(const std::vector<uint8_t> & input);
- bool buffer_clear(const std::vector<uint8_t> & input);
- bool set_tensor(const std::vector<uint8_t> & input);
- bool get_tensor(const std::vector<uint8_t> & input, std::vector<uint8_t> & output);
- bool copy_tensor(const std::vector<uint8_t> & input, std::vector<uint8_t> & output);
- bool graph_compute(const std::vector<uint8_t> & input, std::vector<uint8_t> & output);
-
-private:
- ggml_tensor * deserialize_tensor(struct ggml_context * ctx, const rpc_tensor * tensor);
- ggml_tensor * create_node(uint64_t id,
- struct ggml_context * ctx,
- const std::unordered_map<uint64_t, const rpc_tensor*> & tensor_ptrs,
- std::unordered_map<uint64_t, struct ggml_tensor*> & tensor_map);
-
-
- ggml_backend_t backend;
- std::unordered_set<ggml_backend_buffer_t> buffers;
-};
-
-bool rpc_server::alloc_buffer(const std::vector<uint8_t> & input, std::vector<uint8_t> & output) {
- // input serialization format: | size (8 bytes) |
- if (input.size() != sizeof(uint64_t)) {
- return false;
- }
- uint64_t size;
- memcpy(&size, input.data(), sizeof(size));
- ggml_backend_buffer_type_t buft = ggml_backend_get_default_buffer_type(backend);
- ggml_backend_buffer_t buffer = ggml_backend_buft_alloc_buffer(buft, size);
- uint64_t remote_ptr = 0;
- uint64_t remote_size = 0;
- if (buffer != nullptr) {
- remote_ptr = reinterpret_cast<uint64_t>(buffer);
- remote_size = buffer->size;
- GGML_PRINT_DEBUG("[%s] size: %" PRIu64 " -> remote_ptr: %" PRIx64 ", remote_size: %" PRIu64 "\n", __func__, size, remote_ptr, remote_size);
- buffers.insert(buffer);
- } else {
- GGML_PRINT_DEBUG("[%s] size: %" PRIu64 " -> failed\n", __func__, size);
- }
- // output serialization format: | remote_ptr (8 bytes) | remote_size (8 bytes) |
- output.resize(2*sizeof(uint64_t), 0);
- memcpy(output.data(), &remote_ptr, sizeof(remote_ptr));
- memcpy(output.data() + sizeof(uint64_t), &remote_size, sizeof(remote_size));
- return true;
-}
-
-void rpc_server::get_alignment(std::vector<uint8_t> & output) {
- ggml_backend_buffer_type_t buft = ggml_backend_get_default_buffer_type(backend);
- size_t alignment = ggml_backend_buft_get_alignment(buft);
- GGML_PRINT_DEBUG("[%s] alignment: %lu\n", __func__, alignment);
- // output serialization format: | alignment (8 bytes) |
- output.resize(sizeof(uint64_t), 0);
- memcpy(output.data(), &alignment, sizeof(alignment));
-}
-
-void rpc_server::get_max_size(std::vector<uint8_t> & output) {
- ggml_backend_buffer_type_t buft = ggml_backend_get_default_buffer_type(backend);
- size_t max_size = ggml_backend_buft_get_max_size(buft);
- GGML_PRINT_DEBUG("[%s] max_size: %lu\n", __func__, max_size);
- // output serialization format: | max_size (8 bytes) |
- output.resize(sizeof(uint64_t), 0);
- memcpy(output.data(), &max_size, sizeof(max_size));
-}
-
-bool rpc_server::buffer_get_base(const std::vector<uint8_t> & input, std::vector<uint8_t> & output) {
- // input serialization format: | remote_ptr (8 bytes) |
- if (input.size() != sizeof(uint64_t)) {
- return false;
- }
- uint64_t remote_ptr;
- memcpy(&remote_ptr, input.data(), sizeof(remote_ptr));
- GGML_PRINT_DEBUG("[%s] remote_ptr: %" PRIx64 "\n", __func__, remote_ptr);
- ggml_backend_buffer_t buffer = reinterpret_cast<ggml_backend_buffer_t>(remote_ptr);
- if (buffers.find(buffer) == buffers.end()) {
- GGML_PRINT_DEBUG("[%s] buffer not found\n", __func__);
- return false;
- }
- void * base = ggml_backend_buffer_get_base(buffer);
- // output serialization format: | base_ptr (8 bytes) |
- uint64_t base_ptr = reinterpret_cast<uint64_t>(base);
- output.resize(sizeof(uint64_t), 0);
- memcpy(output.data(), &base_ptr, sizeof(base_ptr));
- return true;
-}
-
-bool rpc_server::free_buffer(const std::vector<uint8_t> & input) {
- // input serialization format: | remote_ptr (8 bytes) |
- if (input.size() != sizeof(uint64_t)) {
- return false;
- }
- uint64_t remote_ptr;
- memcpy(&remote_ptr, input.data(), sizeof(remote_ptr));
- GGML_PRINT_DEBUG("[%s] remote_ptr: %" PRIx64 "\n", __func__, remote_ptr);
- ggml_backend_buffer_t buffer = reinterpret_cast<ggml_backend_buffer_t>(remote_ptr);
- if (buffers.find(buffer) == buffers.end()) {
- GGML_PRINT_DEBUG("[%s] buffer not found\n", __func__);
- return false;
- }
- ggml_backend_buffer_free(buffer);
- buffers.erase(buffer);
- return true;
-}
-
-bool rpc_server::buffer_clear(const std::vector<uint8_t> & input) {
- // input serialization format: | remote_ptr (8 bytes) | value (1 byte) |
- if (input.size() != sizeof(uint64_t) + sizeof(uint8_t)) {
- return false;
- }
- uint64_t remote_ptr;
- memcpy(&remote_ptr, input.data(), sizeof(remote_ptr));
- uint8_t value;
- memcpy(&value, input.data() + sizeof(uint64_t), sizeof(value));
- GGML_PRINT_DEBUG("[%s] remote_ptr: %" PRIx64 ", value: %u\n", __func__, remote_ptr, value);
- ggml_backend_buffer_t buffer = reinterpret_cast<ggml_backend_buffer_t>(remote_ptr);
- if (buffers.find(buffer) == buffers.end()) {
- GGML_PRINT_DEBUG("[%s] buffer not found\n", __func__);
- return false;
- }
- ggml_backend_buffer_clear(buffer, value);
- return true;
-}
-
-ggml_tensor * rpc_server::deserialize_tensor(struct ggml_context * ctx, const rpc_tensor * tensor) {
- ggml_tensor * result = ggml_new_tensor_4d(ctx, (ggml_type) tensor->type,
- tensor->ne[0], tensor->ne[1], tensor->ne[2], tensor->ne[3]);
- for (uint32_t i = 0; i < GGML_MAX_DIMS; i++) {
- result->nb[i] = tensor->nb[i];
- }
- result->buffer = reinterpret_cast<ggml_backend_buffer_t>(tensor->buffer);
- if (result->buffer && buffers.find(result->buffer) == buffers.end()) {
- return nullptr;
- }
- result->op = (ggml_op) tensor->op;
- for (uint32_t i = 0; i < GGML_MAX_OP_PARAMS / sizeof(int32_t); i++) {
- result->op_params[i] = tensor->op_params[i];
- }
- result->flags = tensor->flags;
- result->data = reinterpret_cast<void *>(tensor->data);
- ggml_set_name(result, tensor->name);
- return result;
-}
-
-
-bool rpc_server::set_tensor(const std::vector<uint8_t> & input) {
- // serialization format: | rpc_tensor | offset (8 bytes) | data (size bytes) |
- if (input.size() < sizeof(rpc_tensor) + sizeof(uint64_t)) {
- return false;
- }
- const rpc_tensor * in_tensor = (const rpc_tensor *)input.data();
- uint64_t offset;
- memcpy(&offset, input.data() + sizeof(rpc_tensor), sizeof(offset));
- size_t size = input.size() - sizeof(rpc_tensor) - sizeof(offset);
-
- struct ggml_init_params params {
- /*.mem_size =*/ ggml_tensor_overhead(),
- /*.mem_buffer =*/ NULL,
- /*.no_alloc =*/ true,
- };
- struct ggml_context * ctx = ggml_init(params);
- ggml_tensor * tensor = deserialize_tensor(ctx, in_tensor);
- if (tensor == nullptr) {
- GGML_PRINT_DEBUG("[%s] error deserializing tensor\n", __func__);
- ggml_free(ctx);
- return false;
- }
- GGML_PRINT_DEBUG("[%s] buffer: %p, data: %p, offset: %" PRIu64 ", size: %zu\n", __func__, (void*)tensor->buffer, tensor->data, offset, size);
- const void * data = input.data() + sizeof(rpc_tensor) + sizeof(offset);
- ggml_backend_tensor_set(tensor, data, offset, size);
- ggml_free(ctx);
- return true;
-}
-
-bool rpc_server::get_tensor(const std::vector<uint8_t> & input, std::vector<uint8_t> & output) {
- // serialization format: | rpc_tensor | offset (8 bytes) | size (8 bytes) |
- if (input.size() != sizeof(rpc_tensor) + 2*sizeof(uint64_t)) {
- return false;
- }
- const rpc_tensor * in_tensor = (const rpc_tensor *)input.data();
- uint64_t offset;
- memcpy(&offset, input.data() + sizeof(rpc_tensor), sizeof(offset));
- uint64_t size;
- memcpy(&size, input.data() + sizeof(rpc_tensor) + sizeof(offset), sizeof(size));
-
- struct ggml_init_params params {
- /*.mem_size =*/ ggml_tensor_overhead(),
- /*.mem_buffer =*/ NULL,
- /*.no_alloc =*/ true,
- };
- struct ggml_context * ctx = ggml_init(params);
- ggml_tensor * tensor = deserialize_tensor(ctx, in_tensor);
- if (tensor == nullptr) {
- GGML_PRINT_DEBUG("[%s] error deserializing tensor\n", __func__);
- ggml_free(ctx);
- return false;
- }
- GGML_PRINT_DEBUG("[%s] buffer: %p, data: %p, offset: %" PRIu64 ", size: %" PRIu64 "\n", __func__, (void*)tensor->buffer, tensor->data, offset, size);
- // output serialization format: | data (size bytes) |
- output.resize(size, 0);
- ggml_backend_tensor_get(tensor, output.data(), offset, size);
- ggml_free(ctx);
- return true;
-}
-
-bool rpc_server::copy_tensor(const std::vector<uint8_t> & input, std::vector<uint8_t> & output) {
- // serialization format: | rpc_tensor src | rpc_tensor dst |
- if (input.size() != 2*sizeof(rpc_tensor)) {
- return false;
- }
- const rpc_tensor * rpc_src = (const rpc_tensor *)input.data();
- const rpc_tensor * rpc_dst = (const rpc_tensor *)(input.data() + sizeof(rpc_src));
-
- struct ggml_init_params params {
- /*.mem_size =*/ 2*ggml_tensor_overhead(),
- /*.mem_buffer =*/ NULL,
- /*.no_alloc =*/ true,
- };
- struct ggml_context * ctx = ggml_init(params);
- ggml_tensor * src = deserialize_tensor(ctx, rpc_src);
- ggml_tensor * dst = deserialize_tensor(ctx, rpc_dst);
- if (src == nullptr || dst == nullptr) {
- GGML_PRINT_DEBUG("[%s] error deserializing tensors\n", __func__);
- ggml_free(ctx);
- return false;
- }
- GGML_PRINT_DEBUG("[%s] src->buffer: %p, dst->buffer: %p\n", __func__, (void*)src->buffer, (void*)dst->buffer);
- bool result = ggml_backend_buffer_copy_tensor(src, dst);
- // output serialization format: | result (1 byte) |
- output.resize(1, 0);
- output[0] = result;
- ggml_free(ctx);
- return true;
-}
-
-ggml_tensor * rpc_server::create_node(uint64_t id,
- struct ggml_context * ctx,
- const std::unordered_map<uint64_t, const rpc_tensor*> & tensor_ptrs,
- std::unordered_map<uint64_t, struct ggml_tensor*> & tensor_map) {
- if (id == 0) {
- return nullptr;
- }
- if (tensor_map.find(id) != tensor_map.end()) {
- return tensor_map[id];
- }
- const rpc_tensor * tensor = tensor_ptrs.at(id);
- struct ggml_tensor * result = deserialize_tensor(ctx, tensor);
- if (result == nullptr) {
- return nullptr;
- }
- tensor_map[id] = result;
- for (int i = 0; i < GGML_MAX_SRC; i++) {
- result->src[i] = create_node(tensor->src[i], ctx, tensor_ptrs, tensor_map);
- }
- result->view_src = create_node(tensor->view_src, ctx, tensor_ptrs, tensor_map);
- result->view_offs = tensor->view_offs;
- return result;
-}
-
-bool rpc_server::graph_compute(const std::vector<uint8_t> & input, std::vector<uint8_t> & output) {
- // serialization format:
- // | n_nodes (4 bytes) | nodes (n_nodes * sizeof(uint64_t) | n_tensors (4 bytes) | tensors (n_tensors * sizeof(rpc_tensor)) |
- if (input.size() < sizeof(uint32_t)) {
- return false;
- }
- uint32_t n_nodes;
- memcpy(&n_nodes, input.data(), sizeof(n_nodes));
- if (input.size() < sizeof(uint32_t) + n_nodes*sizeof(uint64_t) + sizeof(uint32_t)) {
- return false;
- }
- const uint64_t * nodes = (const uint64_t *)(input.data() + sizeof(n_nodes));
- uint32_t n_tensors;
- memcpy(&n_tensors, input.data() + sizeof(n_nodes) + n_nodes*sizeof(uint64_t), sizeof(n_tensors));
- if (input.size() < sizeof(uint32_t) + n_nodes*sizeof(uint64_t) + sizeof(uint32_t) + n_tensors*sizeof(rpc_tensor)) {
- return false;
- }
- const rpc_tensor * tensors = (const rpc_tensor *)(input.data() + sizeof(n_nodes) + n_nodes*sizeof(uint64_t) + sizeof(n_tensors));
- GGML_PRINT_DEBUG("[%s] n_nodes: %u, n_tensors: %u\n", __func__, n_nodes, n_tensors);
-
- static size_t buf_size = ggml_tensor_overhead()*(n_nodes + n_tensors) + ggml_graph_overhead_custom(n_nodes, false);
- struct ggml_init_params params = {
- /*.mem_size =*/ buf_size,
- /*.mem_buffer =*/ NULL,
- /*.no_alloc =*/ true,
- };
- struct ggml_context * ctx = ggml_init(params);
- struct ggml_cgraph * graph = ggml_new_graph_custom(ctx, n_nodes, false);
- graph->n_nodes = n_nodes;
- std::unordered_map<uint64_t, const rpc_tensor*> tensor_ptrs;
- for (uint32_t i = 0; i < n_tensors; i++) {
- tensor_ptrs[tensors[i].id] = &tensors[i];
- }
- std::unordered_map<uint64_t, ggml_tensor*> tensor_map;
- for (uint32_t i = 0; i < n_nodes; i++) {
- int64_t id;
- memcpy(&id, &nodes[i], sizeof(id));
- graph->nodes[i] = create_node(id, ctx, tensor_ptrs, tensor_map);
- }
- ggml_status status = ggml_backend_graph_compute(backend, graph);
- // output serialization format: | status (1 byte) |
- output.resize(1, 0);
- output[0] = status;
- ggml_free(ctx);
- return true;
-}
-
-rpc_server::~rpc_server() {
- for (auto buffer : buffers) {
- ggml_backend_buffer_free(buffer);
- }
-}
-
-static void rpc_serve_client(ggml_backend_t backend, sockfd_t sockfd, size_t free_mem, size_t total_mem) {
- rpc_server server(backend);
- while (true) {
- uint8_t cmd;
- if (!recv_data(sockfd, &cmd, 1)) {
- break;
- }
- std::vector<uint8_t> input;
- std::vector<uint8_t> output;
- uint64_t input_size;
- if (!recv_data(sockfd, &input_size, sizeof(input_size))) {
- break;
- }
- input.resize(input_size);
- if (!recv_data(sockfd, input.data(), input_size)) {
- break;
- }
- bool ok = true;
- switch (cmd) {
- case ALLOC_BUFFER: {
- ok = server.alloc_buffer(input, output);
- break;
- }
- case GET_ALIGNMENT: {
- server.get_alignment(output);
- break;
- }
- case GET_MAX_SIZE: {
- server.get_max_size(output);
- break;
- }
- case BUFFER_GET_BASE: {
- ok = server.buffer_get_base(input, output);
- break;
- }
- case FREE_BUFFER: {
- ok = server.free_buffer(input);
- break;
- }
- case BUFFER_CLEAR: {
- ok = server.buffer_clear(input);
- break;
- }
- case SET_TENSOR: {
- ok = server.set_tensor(input);
- break;
- }
- case GET_TENSOR: {
- ok = server.get_tensor(input, output);
- break;
- }
- case COPY_TENSOR: {
- ok = server.copy_tensor(input, output);
- break;
- }
- case GRAPH_COMPUTE: {
- ok = server.graph_compute(input, output);
- break;
- }
- case GET_DEVICE_MEMORY: {
- // output serialization format: | free (8 bytes) | total (8 bytes) |
- output.resize(2*sizeof(uint64_t), 0);
- memcpy(output.data(), &free_mem, sizeof(free_mem));
- memcpy(output.data() + sizeof(uint64_t), &total_mem, sizeof(total_mem));
- break;
- }
- default: {
- fprintf(stderr, "Unknown command: %d\n", cmd);
- ok = false;
- }
- }
- if (!ok) {
- break;
- }
- uint64_t output_size = output.size();
- if (!send_data(sockfd, &output_size, sizeof(output_size))) {
- break;
- }
- if (!send_data(sockfd, output.data(), output_size)) {
- break;
- }
- }
-}
-
-void start_rpc_server(ggml_backend_t backend, const char * endpoint, size_t free_mem, size_t total_mem) {
- std::string host;
- int port;
- if (!parse_endpoint(endpoint, host, port)) {
- return;
- }
-#ifdef _WIN32
- {
- WSADATA wsaData;
- int res = WSAStartup(MAKEWORD(2, 2), &wsaData);
- if (res != 0) {
- fprintf(stderr, "WSAStartup failed: %d\n", res);
- return;
- }
- }
-#endif
- auto server_socket = create_server_socket(host.c_str(), port);
- if (server_socket == nullptr) {
- fprintf(stderr, "Failed to create server socket\n");
- return;
- }
- while (true) {
- auto client_socket = socket_accept(server_socket->fd);
- if (client_socket == nullptr) {
- fprintf(stderr, "Failed to accept client connection\n");
- return;
- }
- printf("Accepted client connection, free_mem=%zu, total_mem=%zu\n", free_mem, total_mem);
- rpc_serve_client(backend, client_socket->fd, free_mem, total_mem);
- printf("Client connection closed\n");
- }
-#ifdef _WIN32
- WSACleanup();
-#endif
-}
generated by cgit v1.2.3 (git 2.25.1) at 2025-10-05 19:05:42 +0000