Merge mainline llama.cpp (#3)

* Merging mainline - WIP

* Merging mainline - WIP

AVX2 and CUDA appear to work.
CUDA performance seems slightly (~1-2%) lower as it is so often
the case with llama.cpp/ggml after some "improvements" have been made.

* Merging mainline - fix Metal

* Remove check

---------

Co-authored-by: Iwan Kawrakow <iwan.kawrakow@gmail.com>

1 files changed, 525 insertions, 0 deletions

diff --git a/ggml/src/vulkan-shaders/vulkan-shaders-gen.cpp b/ggml/src/vulkan-shaders/vulkan-shaders-gen.cpp
new file mode 100644
index 00000000..c5be3754
--- /dev/null
+++ b/ggml/src/vulkan-shaders/vulkan-shaders-gen.cpp
@@ -0,0 +1,525 @@
+
+
+#include <iostream>
+#include <fstream>
+#include <sstream>
+#include <string>
+#include <stdexcept>
+#include <array>
+#include <vector>
+#include <map>
+#include <thread>
+#include <mutex>
+#include <future>
+#include <queue>
+#include <condition_variable>
+#include <cstdio>
+#include <cstring>
+#include <cstdlib>
+#include <sys/stat.h>
+#include <sys/types.h>
+
+#ifdef _WIN32
+    #include <windows.h>
+    #include <direct.h> // For _mkdir on Windows
+#else
+    #include <unistd.h>
+    #include <sys/wait.h>
+    #include <fcntl.h>
+#endif
+
+#define ASYNCIO_CONCURRENCY 64
+
+std::mutex lock;
+std::vector<std::pair<std::string, std::string>> shader_fnames;
+
+std::string GLSLC = "glslc";
+std::string input_dir = "vulkan-shaders";
+std::string output_dir = "/tmp";
+std::string target_hpp = "ggml-vulkan-shaders.hpp";
+std::string target_cpp = "ggml-vulkan-shaders.cpp";
+bool no_clean = false;
+
+const std::vector<std::string> type_names = {
+    "f32",
+    "f16",
+    "q4_0",
+    "q4_1",
+    "q5_0",
+    "q5_1",
+    "q8_0",
+    "q2_k",
+    "q3_k",
+    "q4_k",
+    "q5_k",
+    "q6_k",
+    "iq4_nl"
+};
+
+void execute_command(const std::string& command, std::string& stdout_str, std::string& stderr_str) {
+#ifdef _WIN32
+    HANDLE stdout_read, stdout_write;
+    HANDLE stderr_read, stderr_write;
+    SECURITY_ATTRIBUTES sa = { sizeof(SECURITY_ATTRIBUTES), NULL, TRUE };
+
+    if (!CreatePipe(&stdout_read, &stdout_write, &sa, 0) ||
+        !SetHandleInformation(stdout_read, HANDLE_FLAG_INHERIT, 0)) {
+        throw std::runtime_error("Failed to create stdout pipe");
+    }
+
+    if (!CreatePipe(&stderr_read, &stderr_write, &sa, 0) ||
+        !SetHandleInformation(stderr_read, HANDLE_FLAG_INHERIT, 0)) {
+        throw std::runtime_error("Failed to create stderr pipe");
+    }
+
+    PROCESS_INFORMATION pi;
+    STARTUPINFOA si = { sizeof(STARTUPINFOA) };
+    si.dwFlags = STARTF_USESTDHANDLES;
+    si.hStdOutput = stdout_write;
+    si.hStdError = stderr_write;
+
+    std::vector<char> cmd(command.begin(), command.end());
+    cmd.push_back('\0');
+
+    if (!CreateProcessA(NULL, cmd.data(), NULL, NULL, TRUE, 0, NULL, NULL, &si, &pi)) {
+        throw std::runtime_error("Failed to create process");
+    }
+
+    CloseHandle(stdout_write);
+    CloseHandle(stderr_write);
+
+    std::array<char, 128> buffer;
+    DWORD bytes_read;
+
+    while (ReadFile(stdout_read, buffer.data(), buffer.size(), &bytes_read, NULL) && bytes_read > 0) {
+        stdout_str.append(buffer.data(), bytes_read);
+    }
+
+    while (ReadFile(stderr_read, buffer.data(), buffer.size(), &bytes_read, NULL) && bytes_read > 0) {
+        stderr_str.append(buffer.data(), bytes_read);
+    }
+
+    CloseHandle(stdout_read);
+    CloseHandle(stderr_read);
+    WaitForSingleObject(pi.hProcess, INFINITE);
+    CloseHandle(pi.hProcess);
+    CloseHandle(pi.hThread);
+#else
+int stdout_pipe[2];
+    int stderr_pipe[2];
+
+    if (pipe(stdout_pipe) != 0 || pipe(stderr_pipe) != 0) {
+        throw std::runtime_error("Failed to create pipes");
+    }
+
+    pid_t pid = fork();
+    if (pid < 0) {
+        throw std::runtime_error("Failed to fork process");
+    }
+
+    if (pid == 0) {
+        close(stdout_pipe[0]);
+        close(stderr_pipe[0]);
+        dup2(stdout_pipe[1], STDOUT_FILENO);
+        dup2(stderr_pipe[1], STDERR_FILENO);
+        close(stdout_pipe[1]);
+        close(stderr_pipe[1]);
+        execl("/bin/sh", "sh", "-c", command.c_str(), (char*) nullptr);
+        _exit(EXIT_FAILURE);
+    } else {
+        close(stdout_pipe[1]);
+        close(stderr_pipe[1]);
+
+        std::array<char, 128> buffer;
+        ssize_t bytes_read;
+
+        while ((bytes_read = read(stdout_pipe[0], buffer.data(), buffer.size())) > 0) {
+            stdout_str.append(buffer.data(), bytes_read);
+        }
+
+        while ((bytes_read = read(stderr_pipe[0], buffer.data(), buffer.size())) > 0) {
+            stderr_str.append(buffer.data(), bytes_read);
+        }
+
+        close(stdout_pipe[0]);
+        close(stderr_pipe[0]);
+        waitpid(pid, nullptr, 0);
+    }
+#endif
+}
+
+bool directory_exists(const std::string& path) {
+    struct stat info;
+    if (stat(path.c_str(), &info) != 0) {
+        return false; // Path doesn't exist or can't be accessed
+    }
+    return (info.st_mode & S_IFDIR) != 0; // Check if it is a directory
+}
+
+bool create_directory(const std::string& path) {
+#ifdef _WIN32
+    return _mkdir(path.c_str()) == 0 || errno == EEXIST; // EEXIST means the directory already exists
+#else
+    return mkdir(path.c_str(), 0755) == 0 || errno == EEXIST; // 0755 is the directory permissions
+#endif
+}
+
+std::string to_uppercase(const std::string& input) {
+    std::string result = input;
+    for (char& c : result) {
+        c = std::toupper(c);
+    }
+    return result;
+}
+
+bool string_ends_with(const std::string& str, const std::string& suffix) {
+    if (suffix.size() > str.size()) {
+        return false;
+    }
+    return std::equal(suffix.rbegin(), suffix.rend(), str.rbegin());
+}
+
+#ifdef _WIN32
+    static const char path_separator = '\\';
+#else
+    static const char path_separator = '/';
+#endif
+
+std::string join_paths(const std::string& path1, const std::string& path2) {
+    return path1 + path_separator + path2;
+}
+
+std::string basename(const std::string &path) {
+    return path.substr(path.find_last_of("/\\") + 1);
+}
+
+void string_to_spv(const std::string& _name, const std::string& in_fname, const std::map<std::string, std::string>& defines, bool fp16 = true) {
+    std::string name = _name + (fp16 ? "" : "_fp32");
+    std::string out_fname = join_paths(output_dir, name + ".spv");
+    std::string in_path = join_paths(input_dir, in_fname);
+
+    std::vector<std::string> cmd = {GLSLC, "-fshader-stage=compute", "--target-env=vulkan1.2", "-O", in_path, "-o", out_fname};
+    for (const auto& define : defines) {
+        cmd.push_back("-D" + define.first + "=" + define.second);
+    }
+
+    std::string command;
+    for (const auto& part : cmd) {
+        command += part + " ";
+    }
+
+    std::string stdout_str, stderr_str;
+    try {
+        // std::cout << "Executing command: ";
+        // for (const auto& part : cmd) {
+        //     std::cout << part << " ";
+        // }
+        // std::cout << std::endl;
+
+        execute_command(command, stdout_str, stderr_str);
+        if (!stderr_str.empty()) {
+            std::cerr << "cannot compile " << name << "\n\n" << command << "\n\n" << stderr_str << std::endl;
+            return;
+        }
+
+        std::lock_guard<std::mutex> guard(lock);
+        shader_fnames.push_back(std::make_pair(name, out_fname));
+    } catch (const std::exception& e) {
+        std::cerr << "Error executing command for " << name << ": " << e.what() << std::endl;
+    }
+}
+
+std::map<std::string, std::string> merge_maps(const std::map<std::string, std::string>& a, const std::map<std::string, std::string>& b) {
+    std::map<std::string, std::string> result = a;
+    result.insert(b.begin(), b.end());
+    return result;
+}
+
+void matmul_shaders(std::vector<std::future<void>>& tasks, bool fp16, bool matmul_id) {
+    std::string load_vec = fp16 ? "8" : "4";
+    std::string aligned_b_type_f32 = fp16 ? "mat2x4" : "vec4";
+    std::string aligned_b_type_f16 = fp16 ? "f16mat2x4" : "f16vec4";
+
+    std::map<std::string, std::string> base_dict = {{"FLOAT_TYPE", fp16 ? "float16_t" : "float"}};
+    std::string shader_name = "matmul";
+
+    if (matmul_id) {
+        base_dict["MUL_MAT_ID"] = "1";
+        shader_name = "matmul_id";
+    }
+
+    if (fp16) {
+        base_dict["FLOAT16"] = "1";
+    }
+
+    // Shaders with f16 B_TYPE
+    tasks.push_back(std::async(std::launch::async, [=] {
+        string_to_spv(shader_name + "_f32_f16", "mul_mm.comp", merge_maps(base_dict, {{"DATA_A_F32", "1"}, {"B_TYPE", "float16_t"}, {"D_TYPE", "float"}}), fp16);
+    }));
+    tasks.push_back(std::async(std::launch::async, [=] {
+        string_to_spv(shader_name + "_f32_f16_aligned", "mul_mm.comp", merge_maps(base_dict, {{"DATA_A_F32", "1"}, {"LOAD_VEC_A", load_vec}, {"LOAD_VEC_B", load_vec}, {"B_TYPE", aligned_b_type_f16}, {"D_TYPE", "float"}}), fp16);
+    }));
+
+    tasks.push_back(std::async(std::launch::async, [=] {
+        string_to_spv(shader_name + "_f16", "mul_mm.comp", merge_maps(base_dict, {{"DATA_A_F16", "1"}, {"B_TYPE", "float16_t"}, {"D_TYPE", "float"}}), fp16);
+    }));
+    tasks.push_back(std::async(std::launch::async, [=] {
+        string_to_spv(shader_name + "_f16_aligned", "mul_mm.comp", merge_maps(base_dict, {{"DATA_A_F16", "1"}, {"LOAD_VEC_A", load_vec}, {"LOAD_VEC_B", load_vec}, {"B_TYPE", aligned_b_type_f16}, {"D_TYPE", "float"}}), fp16);
+    }));
+
+    for (const auto& tname : type_names) {
+        std::string data_a_key = "DATA_A_" + to_uppercase(tname);
+        std::string load_vec_a = (tname == "f32" || tname == "f16") ? load_vec : "2";
+        tasks.push_back(std::async(std::launch::async, [=] {
+            string_to_spv(shader_name + "_" + tname + "_f32", "mul_mm.comp", merge_maps(base_dict, {{data_a_key, "1"}, {"LOAD_VEC_A", load_vec_a}, {"B_TYPE", "float"}, {"D_TYPE", "float"}}), fp16);
+        }));
+        tasks.push_back(std::async(std::launch::async, [=] {
+            string_to_spv(shader_name + "_" + tname + "_f32_aligned", "mul_mm.comp", merge_maps(base_dict, {{data_a_key, "1"}, {"LOAD_VEC_A", load_vec_a}, {"LOAD_VEC_B", load_vec}, {"B_TYPE", aligned_b_type_f32}, {"D_TYPE", "float"}}), fp16);
+        }));
+    }
+}
+
+void process_shaders(std::vector<std::future<void>>& tasks) {
+    std::cout << "ggml_vulkan: Generating and compiling shaders to SPIR-V" << std::endl;
+    std::map<std::string, std::string> base_dict = {{"FLOAT_TYPE", "float"}};
+
+    for (const auto& fp16 : {false, true}) {
+        matmul_shaders(tasks, fp16, false);
+        matmul_shaders(tasks, fp16, true);
+    }
+
+    for (const auto& tname : type_names) {
+        // mul mat vec
+        std::string data_a_key = "DATA_A_" + to_uppercase(tname);
+        std::string shader = (string_ends_with(tname, "_k")) ? "mul_mat_vec_" + tname + ".comp" : "mul_mat_vec.comp";
+
+        tasks.push_back(std::async(std::launch::async, [=] {
+            string_to_spv("mul_mat_vec_" + tname + "_f32_f32", shader, merge_maps(base_dict, {{data_a_key, "1"}, {"B_TYPE", "float"}, {"D_TYPE", "float"}}));
+        }));
+        tasks.push_back(std::async(std::launch::async, [=] {
+            string_to_spv("mul_mat_vec_" + tname + "_f16_f32", shader, merge_maps(base_dict, {{data_a_key, "1"}, {"B_TYPE", "float16_t"}, {"D_TYPE", "float"}}));
+        }));
+
+        tasks.push_back(std::async(std::launch::async, [=] {
+            string_to_spv("mul_mat_vec_id_" + tname + "_f32", shader, merge_maps(base_dict, {{"MUL_MAT_ID", "1"}, {data_a_key, "1"}, {"B_TYPE", "float"}, {"D_TYPE", "float"}}));
+        }));
+
+        // Dequant shaders
+        if (tname != "f16") {
+            tasks.push_back(std::async(std::launch::async, [=] {
+                string_to_spv("dequant_" + tname, "dequant_" + tname + ".comp", merge_maps(base_dict, {{data_a_key, "1"}, {"D_TYPE", "float16_t"}}));
+            }));
+        }
+
+        if (!string_ends_with(tname, "_k")) {
+            shader = (tname == "f32" || tname == "f16") ? "get_rows.comp" : "get_rows_quant.comp";
+
+            if (tname == "f16") {
+                tasks.push_back(std::async(std::launch::async, [=] {
+                    string_to_spv("get_rows_" + tname, shader, {{data_a_key, "1"}, {"B_TYPE", "int"}, {"D_TYPE", "float16_t"}, {"OPTIMIZATION_ERROR_WORKAROUND", "1"}});
+                }));
+            } else {
+                tasks.push_back(std::async(std::launch::async, [=] {
+                    string_to_spv("get_rows_" + tname, shader, {{data_a_key, "1"}, {"B_TYPE", "int"}, {"D_TYPE", "float16_t"}});
+                }));
+            }
+            tasks.push_back(std::async(std::launch::async, [=] {
+                string_to_spv("get_rows_" + tname + "_f32", shader, {{data_a_key, "1"}, {"B_TYPE", "int"}, {"D_TYPE", "float"}});
+            }));
+        }
+    }
+
+    tasks.push_back(std::async(std::launch::async, [] {
+        string_to_spv("mul_mat_vec_p021_f16_f32", "mul_mat_vec_p021.comp", {{"A_TYPE", "float16_t"}, {"B_TYPE", "float"}, {"D_TYPE", "float"}});
+    }));
+    tasks.push_back(std::async(std::launch::async, [] {
+        string_to_spv("mul_mat_vec_nc_f16_f32", "mul_mat_vec_nc.comp", {{"A_TYPE", "float16_t"}, {"B_TYPE", "float"}, {"D_TYPE", "float"}});
+    }));
+
+    // Norms
+    tasks.push_back(std::async(std::launch::async, [=] {
+        string_to_spv("norm_f32", "norm.comp", merge_maps(base_dict, {{"A_TYPE", "float"}, {"D_TYPE", "float"}}));
+    }));
+    tasks.push_back(std::async(std::launch::async, [=] {
+        string_to_spv("rms_norm_f32", "rms_norm.comp", merge_maps(base_dict, {{"A_TYPE", "float"}, {"D_TYPE", "float"}}));
+    }));
+
+    tasks.push_back(std::async(std::launch::async, [] {
+        string_to_spv("cpy_f32_f32", "copy.comp", {{"A_TYPE", "float"}, {"D_TYPE", "float"}});
+    }));
+    tasks.push_back(std::async(std::launch::async, [] {
+        string_to_spv("cpy_f32_f16", "copy.comp", {{"A_TYPE", "float"}, {"D_TYPE", "float16_t"}});
+    }));
+    tasks.push_back(std::async(std::launch::async, [] {
+        string_to_spv("cpy_f16_f16", "copy.comp", {{"A_TYPE", "float16_t"}, {"D_TYPE", "float16_t"}, {"OPTIMIZATION_ERROR_WORKAROUND", "1"}});
+    }));
+
+    tasks.push_back(std::async(std::launch::async, [] {
+        string_to_spv("add_f32", "add.comp", {{"A_TYPE", "float"}, {"B_TYPE", "float"}, {"D_TYPE", "float"}, {"FLOAT_TYPE", "float"}});
+    }));
+
+    tasks.push_back(std::async(std::launch::async, [] {
+        string_to_spv("split_k_reduce", "mul_mat_split_k_reduce.comp", {});
+    }));
+
+    tasks.push_back(std::async(std::launch::async, [] {
+        string_to_spv("mul_f32", "mul.comp", {{"A_TYPE", "float"}, {"B_TYPE", "float"}, {"D_TYPE", "float"}, {"FLOAT_TYPE", "float"}});
+    }));
+
+    tasks.push_back(std::async(std::launch::async, [] {
+        string_to_spv("div_f32", "div.comp", {{"A_TYPE", "float"}, {"B_TYPE", "float"}, {"D_TYPE", "float"}, {"FLOAT_TYPE", "float"}});
+    }));
+
+    tasks.push_back(std::async(std::launch::async, [] {
+        string_to_spv("scale_f32", "scale.comp", {{"A_TYPE", "float"}, {"D_TYPE", "float"}, {"FLOAT_TYPE", "float"}});
+    }));
+
+    tasks.push_back(std::async(std::launch::async, [] {
+        string_to_spv("sqr_f32", "square.comp", {{"A_TYPE", "float"}, {"D_TYPE", "float"}, {"FLOAT_TYPE", "float"}});
+    }));
+
+    tasks.push_back(std::async(std::launch::async, [] {
+        string_to_spv("clamp_f32", "clamp.comp", {{"A_TYPE", "float"}, {"D_TYPE", "float"}, {"FLOAT_TYPE", "float"}});
+    }));
+
+    tasks.push_back(std::async(std::launch::async, [] {
+        string_to_spv("gelu_f32", "gelu.comp", {{"A_TYPE", "float"}, {"D_TYPE", "float"}});
+    }));
+    tasks.push_back(std::async(std::launch::async, [] {
+        string_to_spv("silu_f32", "silu.comp", {{"A_TYPE", "float"}, {"D_TYPE", "float"}});
+    }));
+    tasks.push_back(std::async(std::launch::async, [] {
+        string_to_spv("relu_f32", "relu.comp", {{"A_TYPE", "float"}, {"D_TYPE", "float"}});
+    }));
+
+    tasks.push_back(std::async(std::launch::async, [] {
+        string_to_spv("diag_mask_inf_f32", "diag_mask_inf.comp", {{"A_TYPE", "float"}, {"D_TYPE", "float"}});
+    }));
+
+    tasks.push_back(std::async(std::launch::async, [=] {
+        string_to_spv("soft_max_f32", "soft_max.comp", merge_maps(base_dict, {{"A_TYPE", "float"}, {"B_TYPE", "float"}, {"D_TYPE", "float"}}));
+    }));
+    tasks.push_back(std::async(std::launch::async, [=] {
+        string_to_spv("soft_max_f32_f16", "soft_max.comp", merge_maps(base_dict, {{"A_TYPE", "float"}, {"B_TYPE", "float16_t"}, {"D_TYPE", "float"}}));
+    }));
+
+    tasks.push_back(std::async(std::launch::async, [] {
+        string_to_spv("rope_norm_f32", "rope_norm.comp", {{"A_TYPE", "float"}, {"D_TYPE", "float"}});
+    }));
+    tasks.push_back(std::async(std::launch::async, [] {
+        string_to_spv("rope_norm_f16", "rope_norm.comp", {{"A_TYPE", "float16_t"}, {"D_TYPE", "float16_t"}});
+    }));
+
+    tasks.push_back(std::async(std::launch::async, [] {
+        string_to_spv("rope_neox_f32", "rope_neox.comp", {{"A_TYPE", "float"}, {"D_TYPE", "float"}});
+    }));
+    tasks.push_back(std::async(std::launch::async, [] {
+        string_to_spv("rope_neox_f16", "rope_neox.comp", {{"A_TYPE", "float16_t"}, {"D_TYPE", "float16_t"}});
+    }));
+
+    tasks.push_back(std::async(std::launch::async, [] {
+        string_to_spv("argsort_f32", "argsort.comp", {{"A_TYPE", "float"}});
+    }));
+
+    tasks.push_back(std::async(std::launch::async, [=] {
+        string_to_spv("sum_rows_f32", "sum_rows.comp", merge_maps(base_dict, {{"A_TYPE", "float"}, {"D_TYPE", "float"}}));
+    }));
+}
+
+void write_output_files() {
+    FILE* hdr = fopen(target_hpp.c_str(), "w");
+    FILE* src = fopen(target_cpp.c_str(), "w");
+
+    fprintf(hdr, "#include <cstdint>\n\n");
+    fprintf(src, "#include \"%s\"\n\n", basename(target_hpp).c_str());
+
+    for (const auto& pair : shader_fnames) {
+        const std::string& name = pair.first;
+        const std::string& path = pair.second;
+        FILE* spv = fopen(path.c_str(), "rb");
+        if (!spv) {
+            std::cerr << "Error opening SPIR-V file: " << path << "\n";
+            continue;
+        }
+
+        fseek(spv, 0, SEEK_END);
+        size_t size = ftell(spv);
+        fseek(spv, 0, SEEK_SET);
+
+        std::vector<unsigned char> data(size);
+        size_t read_size = fread(data.data(), 1, size, spv);
+        fclose(spv);
+        if (read_size != size) {
+            std::cerr << "Error reading SPIR-V file: " << path << "\n";
+            continue;
+        }
+
+        fprintf(hdr, "extern unsigned char %s_data[%zu];\n", name.c_str(), size);
+        fprintf(hdr, "const uint64_t %s_len = %zu;\n\n", name.c_str(), size);
+
+        fprintf(src, "unsigned char %s_data[%zu] = {\n", name.c_str(), size);
+        for (size_t i = 0; i < size; ++i) {
+            fprintf(src, "0x%02x,", data[i]);
+            if ((i + 1) % 12 == 0) fprintf(src, "\n");
+        }
+        fprintf(src, "\n};\n\n");
+
+        if (!no_clean) {
+            std::remove(path.c_str());
+        }
+    }
+
+    fclose(hdr);
+    fclose(src);
+}
+
+int main(int argc, char** argv) {
+    std::map<std::string, std::string> args;
+    for (int i = 1; i < argc; i += 2) {
+        if (i + 1 < argc) {
+            args[argv[i]] = argv[i + 1];
+        }
+    }
+
+    if (args.find("--glslc") != args.end()) {
+        GLSLC = args["--glslc"]; // Path to glslc
+    }
+    if (args.find("--input-dir") != args.end()) {
+        input_dir = args["--input-dir"]; // Directory containing shader sources
+    }
+    if (args.find("--output-dir") != args.end()) {
+        output_dir = args["--output-dir"]; // Directory for containing SPIR-V output
+    }
+    if (args.find("--target-hpp") != args.end()) {
+        target_hpp = args["--target-hpp"]; // Path to generated header file
+    }
+    if (args.find("--target-cpp") != args.end()) {
+        target_cpp = args["--target-cpp"]; // Path to generated cpp file
+    }
+    if (args.find("--no-clean") != args.end()) {
+        no_clean = true; // Keep temporary SPIR-V files in output-dir after build
+    }
+
+    if (!directory_exists(input_dir)) {
+        std::cerr << "\"" << input_dir << "\" must be a valid directory containing shader sources" << std::endl;
+        return EXIT_FAILURE;
+    }
+
+    if (!directory_exists(output_dir)) {
+        if (!create_directory(output_dir)) {
+            std::cerr << "Error creating output directory: " << output_dir << "\n";
+            return EXIT_FAILURE;
+        }
+    }
+
+    std::vector<std::future<void>> tasks;
+    process_shaders(tasks);
+
+    for (auto& task : tasks) {
+        task.get();
+    }
+
+    write_output_files();
+
+    return EXIT_SUCCESS;
+}