diff options
Diffstat (limited to 'ggml-backend.c')
| -rw-r--r-- | ggml-backend.c | 80 |
1 files changed, 75 insertions, 5 deletions
diff --git a/ggml-backend.c b/ggml-backend.c index 3a22cd08..0c8c9ec4 100644 --- a/ggml-backend.c +++ b/ggml-backend.c @@ -35,6 +35,13 @@ bool ggml_backend_buft_supports_backend(ggml_backend_buffer_type_t buft, ggml_ba return buft->iface.supports_backend(buft, backend); } +bool ggml_backend_buft_is_host(ggml_backend_buffer_type_t buft) { + if (buft->iface.is_host) { + return buft->iface.is_host(buft); + } + return false; +} + // backend buffer ggml_backend_buffer_t ggml_backend_buffer_init( @@ -94,6 +101,14 @@ size_t ggml_backend_buffer_get_alloc_size(ggml_backend_buffer_t buffer, struct g return ggml_backend_buft_get_alloc_size(ggml_backend_buffer_type(buffer), tensor); } +void ggml_backend_buffer_clear(ggml_backend_buffer_t buffer, uint8_t value) { + buffer->iface.clear(buffer, value); +} + +bool ggml_backend_buffer_is_host(ggml_backend_buffer_t buffer) { + return ggml_backend_buft_is_host(ggml_backend_buffer_type(buffer)); +} + ggml_backend_buffer_type_t ggml_backend_buffer_type(ggml_backend_buffer_t buffer) { return buffer->buft; } @@ -378,7 +393,6 @@ static void * ggml_backend_cpu_buffer_get_base(ggml_backend_buffer_t buffer) { static void ggml_backend_cpu_buffer_free_buffer(ggml_backend_buffer_t buffer) { free(buffer->context); - GGML_UNUSED(buffer); } static void ggml_backend_cpu_buffer_set_tensor(ggml_backend_buffer_t buffer, struct ggml_tensor * tensor, const void * data, size_t offset, size_t size) { @@ -411,6 +425,10 @@ static void ggml_backend_cpu_buffer_cpy_tensor_to(ggml_backend_buffer_t buffer, GGML_UNUSED(buffer); } +static void ggml_backend_cpu_buffer_clear(ggml_backend_buffer_t buffer, uint8_t value) { + memset(buffer->context, value, buffer->size); +} + static struct ggml_backend_buffer_i cpu_backend_buffer_i = { /* .free_buffer = */ ggml_backend_cpu_buffer_free_buffer, /* .get_base = */ ggml_backend_cpu_buffer_get_base, @@ -419,6 +437,7 @@ static struct ggml_backend_buffer_i cpu_backend_buffer_i = { /* .get_tensor = */ ggml_backend_cpu_buffer_get_tensor, /* .cpy_tensor_from = */ ggml_backend_cpu_buffer_cpy_tensor_from, /* .cpy_tensor_to = */ ggml_backend_cpu_buffer_cpy_tensor_to, + /* .clear = */ ggml_backend_cpu_buffer_clear, }; // for buffers from ptr, free is not called @@ -430,6 +449,7 @@ static struct ggml_backend_buffer_i cpu_backend_buffer_i_from_ptr = { /* .get_tensor = */ ggml_backend_cpu_buffer_get_tensor, /* .cpy_tensor_from = */ ggml_backend_cpu_buffer_cpy_tensor_from, /* .cpy_tensor_to = */ ggml_backend_cpu_buffer_cpy_tensor_to, + /* .clear = */ ggml_backend_cpu_buffer_clear, }; static const size_t TENSOR_ALIGNMENT = 64; // should be enough for AVX 512 @@ -455,20 +475,70 @@ static bool ggml_backend_cpu_buffer_type_supports_backend(ggml_backend_buffer_ty GGML_UNUSED(buft); } +static bool ggml_backend_cpu_buffer_type_is_host(ggml_backend_buffer_type_t buft) { + return true; + + GGML_UNUSED(buft); +} + ggml_backend_buffer_type_t ggml_backend_cpu_buffer_type(void) { - static struct ggml_backend_buffer_type ggml_backend_buffer_type_cpu = { + static struct ggml_backend_buffer_type ggml_backend_cpu_buffer_type = { /* .iface = */ { /* .alloc_buffer = */ ggml_backend_cpu_buffer_type_alloc_buffer, /* .get_alignment = */ ggml_backend_cpu_buffer_type_get_alignment, /* .get_alloc_size = */ NULL, // defaults to ggml_nbytes /* .supports_backend = */ ggml_backend_cpu_buffer_type_supports_backend, + /* .is_host = */ ggml_backend_cpu_buffer_type_is_host, }, /* .context = */ NULL, }; - return &ggml_backend_buffer_type_cpu; + return &ggml_backend_cpu_buffer_type; } +#ifdef GGML_USE_CPU_HBM + +// buffer type HBM + +#include <hbwmalloc.h> + +static void ggml_backend_cpu_hbm_buffer_free_buffer(ggml_backend_buffer_t buffer) { + hbw_free(buffer->context); +} + +static ggml_backend_buffer_t ggml_backend_cpu_hbm_buffer_type_alloc_buffer(ggml_backend_buffer_type_t buft, size_t size) { + //void * ptr = hbw_malloc(size); + void * ptr; + int result = hbw_posix_memalign(&ptr, ggml_backend_cpu_buffer_type_get_alignment(buft), size); + if (result != 0) { + fprintf(stderr, "failed to allocate HBM buffer of size %zu\n", size); + return NULL; + } + + // FIXME: this is a hack to avoid having to implement a new buffer type + ggml_backend_buffer_t buffer = ggml_backend_cpu_buffer_from_ptr(ptr, size); + buffer->buft = buft; + buffer->iface.free_buffer = ggml_backend_cpu_hbm_buffer_free_buffer; + + return buffer; +} + +ggml_backend_buffer_type_t ggml_backend_cpu_hbm_buffer_type() { + static struct ggml_backend_buffer_type ggml_backend_cpu_buffer_type_hbm = { + /* .iface = */ { + /* .alloc_buffer = */ ggml_backend_cpu_hbm_buffer_type_alloc_buffer, + /* .get_alignment = */ ggml_backend_cpu_buffer_type_get_alignment, + /* .get_alloc_size = */ NULL, // defaults to ggml_nbytes + /* .supports_backend = */ ggml_backend_cpu_buffer_type_supports_backend, + /* .is_host = */ ggml_backend_cpu_buffer_type_is_host, + }, + /* .context = */ NULL, + }; + + return &ggml_backend_cpu_buffer_type_hbm; +} +#endif + struct ggml_backend_cpu_context { int n_threads; void * work_data; @@ -505,7 +575,7 @@ static ggml_backend_graph_plan_t ggml_backend_cpu_graph_plan_create(ggml_backend struct ggml_backend_plan_cpu * cpu_plan = malloc(sizeof(struct ggml_backend_plan_cpu)); cpu_plan->cplan = ggml_graph_plan(cgraph, cpu_ctx->n_threads); - cpu_plan->cgraph = *cgraph; + cpu_plan->cgraph = *cgraph; // FIXME: deep copy if (cpu_plan->cplan.work_size > 0) { cpu_plan->cplan.work_data = malloc(cpu_plan->cplan.work_size); @@ -1180,7 +1250,7 @@ void ggml_backend_sched_set_node_backend(ggml_backend_sched_t sched, struct ggml // utils void ggml_backend_view_init(ggml_backend_buffer_t buffer, struct ggml_tensor * tensor) { GGML_ASSERT(tensor->buffer == NULL); - GGML_ASSERT(tensor->data == NULL); + //GGML_ASSERT(tensor->data == NULL); // views of pre-allocted tensors may have the data set, but still need to be initialized GGML_ASSERT(tensor->view_src != NULL); GGML_ASSERT(tensor->view_src->buffer != NULL); GGML_ASSERT(tensor->view_src->data != NULL); |