mirror of
https://github.com/LostRuins/koboldcpp.git
synced 2025-09-10 17:14:36 +00:00
269 lines
9.8 KiB
C
269 lines
9.8 KiB
C
//this is a drop-in for all CLBlast related code, to keep the main ggml.c unmodified
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// we will imitate the function definition from OpenBLAS instead, replaced as necessary.
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//windows binaries for clblast obtained from https://github.com/CNugteren/CLBlast (apache license)
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//windows binaries for opencl obtained from https://github.com/KhronosGroup/OpenCL-SDK (apache license)
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#if GGML_USE_OPENBLAS
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#include <cblas.h>
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#include <stdio.h>
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#include <stdlib.h>
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#if GGML_USE_CLBLAST
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#define CL_TARGET_OPENCL_VERSION 110
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#include <clblast_c.h>
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#include <ggml_clblast_dequant.cl>
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cl_platform_id platform;
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cl_device_id device;
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cl_context context;
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cl_command_queue queue;
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cl_program program;
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cl_kernel kernel_q4_0, kernel_q4_1;
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bool cl_initialized = false;
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// Function taken from https://github.com/rsnemmen/OpenCL-examples/blob/master/add_numbers/add_numbers.c
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cl_program build_program(cl_context ctx, cl_device_id dev, const char* filename) {
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cl_program program;
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FILE *program_handle;
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char *program_buffer, *program_log;
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size_t program_size, log_size;
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int err;
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program_handle = fopen(filename, "r");
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if(program_handle == NULL) {
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perror("OpenCL kernel file not found");
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exit(1);
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}
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fseek(program_handle, 0, SEEK_END);
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program_size = ftell(program_handle);
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rewind(program_handle);
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program_buffer = (char*)malloc(program_size + 1);
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program_buffer[program_size] = '\0';
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fread(program_buffer, sizeof(char), program_size, program_handle);
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fclose(program_handle);
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program = clCreateProgramWithSource(ctx, 1,
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(const char**)&program_buffer, &program_size, &err);
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if(err < 0) {
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perror("OpenCL error creating program");
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exit(1);
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}
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free(program_buffer);
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err = clBuildProgram(program, 0, NULL, NULL, NULL, NULL);
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if(err < 0) {
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clGetProgramBuildInfo(program, dev, CL_PROGRAM_BUILD_LOG,
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0, NULL, &log_size);
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program_log = (char*) malloc(log_size + 1);
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program_log[log_size] = '\0';
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clGetProgramBuildInfo(program, dev, CL_PROGRAM_BUILD_LOG,
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log_size + 1, program_log, NULL);
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printf("%s\n", program_log);
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free(program_log);
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exit(1);
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}
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return program;
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}
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cl_program build_program_from_source(cl_context ctx, cl_device_id dev, const char* program_buffer) {
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cl_program program;
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char *program_log;
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size_t program_size, log_size;
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int err;
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program_size = strlen(program_buffer);
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program = clCreateProgramWithSource(ctx, 1,
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(const char**)&program_buffer, &program_size, &err);
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if(err < 0) {
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perror("OpenCL error creating program");
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exit(1);
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}
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err = clBuildProgram(program, 0, NULL, NULL, NULL, NULL);
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if(err < 0) {
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clGetProgramBuildInfo(program, dev, CL_PROGRAM_BUILD_LOG,
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0, NULL, &log_size);
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program_log = (char*) malloc(log_size + 1);
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program_log[log_size] = '\0';
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clGetProgramBuildInfo(program, dev, CL_PROGRAM_BUILD_LOG,
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log_size + 1, program_log, NULL);
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printf("%s\n", program_log);
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free(program_log);
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exit(1);
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}
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return program;
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}
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static void ggml_cl_sgemm_wrapper(const enum CBLAS_ORDER order, const enum CBLAS_TRANSPOSE trans_a, const enum CBLAS_TRANSPOSE trans_b, const int m, const int n, const int k, const float alpha, const void *host_a, const int lda, const float *host_b, const int ldb, const float beta, float *host_c, const int ldc, const int btype) {
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cl_int err = 0;
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cl_event events[4];
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events[0] = NULL;
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events[1] = NULL;
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events[2] = NULL;
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events[3] = NULL;
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if (!cl_initialized) {
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char * KCPP_CLBLAST_PLATFORM = getenv("KCPP_CLBLAST_PLATFORM");
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char * KCPP_CLBLAST_DEVICES = getenv("KCPP_CLBLAST_DEVICES");
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int plat_num = (KCPP_CLBLAST_PLATFORM == NULL ? 0 : atoi(KCPP_CLBLAST_PLATFORM));
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int dev_num = (KCPP_CLBLAST_DEVICES == NULL ? 0 : atoi(KCPP_CLBLAST_DEVICES));
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printf("\nInitializing CLBlast (First Run)...");
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printf("\nAttempting to use: Platform=%d, Device=%d (If invalid, program will crash)\n",plat_num,dev_num);
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cl_uint num_platforms;
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clGetPlatformIDs(0, NULL, &num_platforms);
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cl_platform_id* platforms = (cl_platform_id*)malloc(num_platforms*sizeof(cl_platform_id));
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clGetPlatformIDs(num_platforms, platforms, NULL);
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platform = platforms[plat_num];
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char platform_buffer[1024];
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clGetPlatformInfo(platform, CL_PLATFORM_NAME, sizeof(platform_buffer), &platform_buffer, NULL);
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cl_uint num_devices;
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clGetDeviceIDs(platform, CL_DEVICE_TYPE_ALL, 0, NULL, &num_devices);
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cl_device_id* devices = (cl_device_id*)malloc(num_devices*sizeof(cl_device_id));
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clGetDeviceIDs(platform, CL_DEVICE_TYPE_ALL, num_devices, devices, NULL);
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device = devices[dev_num];
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char device_buffer[1024];
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clGetDeviceInfo(device, CL_DEVICE_NAME, sizeof(device_buffer), &device_buffer, NULL);
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printf("Using Platform: %s Device: %s\n", platform_buffer, device_buffer);
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context = clCreateContext(NULL, 1, &device, NULL, NULL, &err);
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if (err != CL_SUCCESS) {
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printf("Error creating OpenCL context: %d\n", err);
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fflush(stdout);
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}
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queue = clCreateCommandQueue(context, device, 0, &err);
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if (err != CL_SUCCESS) {
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printf("Error creating OpenCL Command Queue: %d\n", err);
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fflush(stdout);
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}
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free(platforms);
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free(devices);
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program = build_program_from_source(context, device, clblast_dequant);
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// Prepare dequantize kernels
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kernel_q4_0 = clCreateKernel(program, "dequantize_row_q4_0", &err);
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if(err < 0) {
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printf("Error creating OpenCL dequantize q4_0 kernel: %d\n", err);
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fflush(stdout);
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};
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kernel_q4_1 = clCreateKernel(program, "dequantize_row_q4_1", &err);
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if(err < 0) {
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printf("Error creating OpenCL dequantize q4_1 kernel: %d\n", err);
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fflush(stdout);
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};
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cl_initialized = true;
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}
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bool dequant = (btype == 2 || btype == 3);
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cl_kernel kernel = btype == 2 ? kernel_q4_0 : kernel_q4_1;
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size_t global = n * k, local = 16, qb_size;
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cl_mem cl_buffer_a, cl_buffer_qb, cl_buffer_b, cl_buffer_c;
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// Prepare buffers
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cl_buffer_a = clCreateBuffer(context, CL_MEM_READ_ONLY, m*k*sizeof(float), NULL, &err);
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if (err != CL_SUCCESS) {
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printf("Error creating OpenCL Buffer A: %d\n", err);
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fflush(stdout);
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}
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if (dequant) {
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qb_size = global * (sizeof(float) * (btype == 2 ? 1 : 2) + 16) / 32;
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cl_buffer_qb = clCreateBuffer(context, CL_MEM_READ_ONLY, qb_size, NULL, &err);
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if (err != CL_SUCCESS) {
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printf("Error creating OpenCL Buffer QB: %d\n", err);
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fflush(stdout);
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}
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}
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cl_buffer_b = clCreateBuffer(context, CL_MEM_READ_WRITE, n*k*sizeof(float), NULL, &err);
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if (err != CL_SUCCESS) {
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printf("Error creating OpenCL Buffer B: %d\n", err);
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fflush(stdout);
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}
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cl_buffer_c = clCreateBuffer(context, CL_MEM_READ_WRITE, m*n*sizeof(float), NULL, &err);
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if (err != CL_SUCCESS) {
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printf("Error creating OpenCL Buffer C: %d\n", err);
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fflush(stdout);
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}
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if (dequant) {
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err = clSetKernelArg(kernel, 0, sizeof(cl_mem), &cl_buffer_qb);
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err |= clSetKernelArg(kernel, 1, sizeof(cl_mem), &cl_buffer_b);
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if(err < 0) {
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printf("Error setting OpenCL kernel args: %d\n", err);
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fflush(stdout);
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}
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clEnqueueWriteBuffer(queue, cl_buffer_qb, CL_FALSE, 0, qb_size, host_b, 0, NULL, events + 1);
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} else {
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clEnqueueWriteBuffer(queue, cl_buffer_b, CL_FALSE, 0, n*k*sizeof(float), host_b, 0, NULL, events + 1);
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}
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clEnqueueWriteBuffer(queue, cl_buffer_a, CL_FALSE, 0, m*k*sizeof(float), host_a, 0, NULL, events);
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clEnqueueWriteBuffer(queue, cl_buffer_c, CL_FALSE, 0, m*n*sizeof(float), host_c, 0, NULL, events + 2);
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if (dequant) {
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err = clEnqueueNDRangeKernel(queue, kernel, 1, NULL, &global, &local, 1, events + 1, events + 3);
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if(err < 0) {
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printf("Error enqueueing OpenCL dequantize kernel: %d\n", err);
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fflush(stdout);
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}
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}
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clWaitForEvents(dequant ? 4 : 3, events);
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clReleaseEvent(events[0]);
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clReleaseEvent(events[1]);
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clReleaseEvent(events[2]);
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if (dequant) {
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clReleaseEvent(events[3]);
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}
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// Call the SGEMM routine.
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CLBlastStatusCode status = CLBlastSgemm(order,
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trans_a, trans_b,
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m, n, k,
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alpha,
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cl_buffer_a, 0, lda,
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cl_buffer_b, 0, ldb,
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beta,
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cl_buffer_c, 0, ldc,
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&queue, events);
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clEnqueueReadBuffer(queue, cl_buffer_c, CL_TRUE, 0, m*n*sizeof(float), host_c, 1, events, events + 1);
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// Wait for completion
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if (status == CLBlastSuccess) {
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clWaitForEvents(2, events);
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clReleaseEvent(events[0]);
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clReleaseEvent(events[1]);
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}
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clReleaseMemObject(cl_buffer_a);
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if (dequant) {
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clReleaseMemObject(cl_buffer_qb);
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}
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clReleaseMemObject(cl_buffer_b);
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clReleaseMemObject(cl_buffer_c);
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}
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#endif
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#endif
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#if defined(GGML_USE_ACCELERATE) || defined(GGML_USE_OPENBLAS)
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#if GGML_USE_CLBLAST
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#define do_blas_sgemm(Order, TransA, TransB,M, N, K,alpha, A, lda, B, ldb, beta, C, ldc, btype) ({\
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ggml_cl_sgemm_wrapper(Order, TransA, TransB, M, N, K, alpha, A, lda, B, ldb, beta, C, ldc, btype);\
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})
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#else
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#define do_blas_sgemm(Order, TransA, TransB,M, N, K,alpha, A, lda, B, ldb, beta, C, ldc, btype) ({\
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cblas_sgemm(Order, TransA, TransB, M, N, K, alpha, A, lda, B, ldb, beta, C, ldc);\
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})
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#endif
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#endif
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