diff --git a/ggml-opencl-dequant.cl b/ggml-opencl-dequant.cl deleted file mode 100644 index a65a79f..0000000 --- a/ggml-opencl-dequant.cl +++ /dev/null @@ -1,63 +0,0 @@ -#define MULTILINE_QUOTE(...) #__VA_ARGS__ -const char * clblast_dequant = MULTILINE_QUOTE( - -struct block_q4_0 -{ - float d; - uchar qs[16]; -}; - -__kernel void dequantize_row_q4_0(__global struct block_q4_0* blocks, __global float* result) { - const uint i = get_global_id(0) / 32; - const uint l = get_local_id(0); - - const float d = blocks[i].d; - - const uchar vi = blocks[i].qs[l]; - - const uint index = i*32 + l*2; - result[index + 0] = ((vi & 0xf) - 8)*d; - result[index + 1] = ((vi >> 4) - 8)*d; -} - -struct block_q4_1 -{ - float d; - float m; - uchar qs[16]; -}; - -__kernel void dequantize_row_q4_1(__global struct block_q4_1* blocks, __global float* result) { - const uint i = get_global_id(0) / 32; - const uint l = get_local_id(0); - - const float d = blocks[i].d; - const float m = blocks[i].m; - - const uchar vi = blocks[i].qs[l]; - - const uint index = i*32 + l*2; - result[index + 0] = (vi & 0xf) * d + m; - result[index + 1] = (vi >> 4) * d + m; -} - -struct block_q4_2 -{ - ushort d; - uchar qs[8]; -}; - -__kernel void dequantize_row_q4_2(__global struct block_q4_2* blocks, __global float* result) { - const uint i = get_global_id(0) / 16; - const uint l = get_local_id(0); - - const float d = vload_half(0, (__global half*) &blocks[i].d);; - - const uchar vi = blocks[i].qs[l]; - - const uint index = i*16 + l*2; - result[index + 0] = ((vi & 0xf) - 8)*d; - result[index + 1] = ((vi >> 4) - 8)*d; -} - -); diff --git a/ggml-opencl.c b/ggml-opencl.c index b748f86..4389eca 100644 --- a/ggml-opencl.c +++ b/ggml-opencl.c @@ -3,12 +3,141 @@ #define CL_TARGET_OPENCL_VERSION 110 #include +#include #include #include #include "ggml.h" -#include "ggml-opencl-dequant.cl" +#define MULTILINE_QUOTE(...) #__VA_ARGS__ +const char * clblast_dequant = MULTILINE_QUOTE( + +struct block_q4_0 +{ + float d; + uchar qs[16]; +}; + +__kernel void dequantize_row_q4_0(__global struct block_q4_0* blocks, __global float* result) { + const uint i = get_global_id(0) / 32; + const uint l = get_local_id(0); + + const float d = blocks[i].d; + + const uchar vi = blocks[i].qs[l]; + + const uint index = i*32 + l*2; + result[index + 0] = ((vi & 0xf) - 8)*d; + result[index + 1] = ((vi >> 4) - 8)*d; +} + +struct block_q4_1 +{ + float d; + float m; + uchar qs[16]; +}; + +__kernel void dequantize_row_q4_1(__global struct block_q4_1* blocks, __global float* result) { + const uint i = get_global_id(0) / 32; + const uint l = get_local_id(0); + + const float d = blocks[i].d; + const float m = blocks[i].m; + + const uchar vi = blocks[i].qs[l]; + + const uint index = i*32 + l*2; + result[index + 0] = (vi & 0xf) * d + m; + result[index + 1] = (vi >> 4) * d + m; +} + +struct block_q4_2 +{ + ushort d; + uchar qs[8]; +}; + +__kernel void dequantize_row_q4_2(__global struct block_q4_2* blocks, __global float* result) { + const uint i = get_global_id(0) / 16; + const uint l = get_local_id(0); + + const float d = vload_half(0, (__global half*) &blocks[i].d); + + const uchar vi = blocks[i].qs[l]; + + const uint index = i*16 + l*2; + result[index + 0] = ((vi & 0xf) - 8)*d; + result[index + 1] = ((vi >> 4) - 8)*d; +} + + +struct block_q5_0 +{ + float d; + uint qh; + uchar qs[16]; +}; + +__kernel void dequantize_row_q5_0(__global struct block_q5_0* blocks, __global float* result) { + const uint i = get_global_id(0) / 32; + const uint l = get_local_id(0); + + const float d = blocks[i].d; + + const uchar vi = blocks[i].qs[l]; + + const uint l2 = l * 2; + + const uchar vh0 = ((blocks[i].qh & (1 << (l2 + 0))) >> (l2 + 0)) << 4; + const uchar vh1 = ((blocks[i].qh & (1 << (l2 + 1))) >> (l2 + 1)) << 4; + + const uint index = i*32 + l2; + result[index + 0] = (((vi & 0xf) | vh0) - 16)*d; + result[index + 1] = (((vi >> 4) | vh1) - 16)*d; +} + +struct block_q5_1 +{ + ushort d; + ushort m; + uint qh; + uchar qs[16]; +}; + +__kernel void dequantize_row_q5_1(__global struct block_q5_1* blocks, __global float* result) { + const uint i = get_global_id(0) / 32; + const uint l = get_local_id(0); + + const float d = vload_half(0, (__global half*) &blocks[i].d); + const float m = vload_half(0, (__global half*) &blocks[i].m); + + const uchar vi = blocks[i].qs[l]; + + const uint l2 = l * 2; + + const uchar vh0 = ((blocks[i].qh & (1 << (l2 + 0))) >> (l2 + 0)) << 4; + const uchar vh1 = ((blocks[i].qh & (1 << (l2 + 1))) >> (l2 + 1)) << 4; + + const uint index = i*32 + l2; + result[index + 0] = ((vi & 0xf) | vh0)*d + m; + result[index + 1] = ((vi >> 4) | vh1)*d + m; +} + +struct block_q8_0 +{ + float d; + char qs[32]; +}; + +__kernel void dequantize_row_q8_0(__global struct block_q8_0* blocks, __global float* result) { + const uint i = get_global_id(0) / 32; + const uint l = get_local_id(0); + + result[i*32 + l] = blocks[i].qs[l] * blocks[i].d; +} + +); #define CL_CHECK(err, name) \ do { \ @@ -19,12 +148,26 @@ } \ } while (0) +#define QK5_0 32 +typedef struct { + ggml_fp16_t d; // delta + uint8_t qh[4]; // 5-th bit of quants + uint8_t qs[QK5_0 / 2]; // nibbles / quants +} block_q5_0; + + +typedef struct { + float d; // delta + uint32_t qh; // 5-th bit of quants + uint8_t qs[QK5_0 / 2]; // nibbles / quants +} cl_block_q5_0; + static cl_platform_id platform; static cl_device_id device; static cl_context context; static cl_command_queue queue; static cl_program program; -static cl_kernel kernel_q4_0, kernel_q4_1, kernel_q4_2; +static cl_kernel kernel_q4_0, kernel_q4_1, kernel_q4_2, kernel_q5_0, kernel_q5_1, kernel_q8_0; static cl_mem cl_buffer_a, cl_buffer_qb, cl_buffer_b, cl_buffer_c; static size_t cl_size_a = 0, cl_size_qb = 0, cl_size_b = 0, cl_size_c = 0; @@ -97,6 +240,12 @@ void ggml_cl_init(void) { CL_CHECK(err, "clCreateKernel"); kernel_q4_2 = clCreateKernel(program, "dequantize_row_q4_2", &err); CL_CHECK(err, "clCreateKernel"); + kernel_q5_0 = clCreateKernel(program, "dequantize_row_q5_0", &err); + CL_CHECK(err, "clCreateKernel"); + kernel_q5_1 = clCreateKernel(program, "dequantize_row_q5_1", &err); + CL_CHECK(err, "clCreateKernel"); + kernel_q8_0 = clCreateKernel(program, "dequantize_row_q8_0", &err); + CL_CHECK(err, "clCreateKernel"); } static void ggml_cl_malloc(size_t req_size, size_t* cur_size, cl_mem_flags flags, cl_mem* buf) { @@ -125,6 +274,7 @@ void ggml_cl_sgemm_wrapper( cl_kernel kernel; size_t global = n * k, local, size_qb; bool dequant; + cl_block_q5_0* cl_host_b; switch (btype) { case GGML_TYPE_F32: @@ -146,7 +296,36 @@ void ggml_cl_sgemm_wrapper( dequant = true; kernel = kernel_q4_2; local = 8; - size_qb = global * (sizeof(short) + local) / 16; + size_qb = global * (sizeof(ggml_fp16_t) + local) / 16; + break; + case GGML_TYPE_Q5_0: + dequant = true; + kernel = kernel_q5_0; + local = 16; + // For some reason OpenCL seems to be incapable of working with structs of size 22. + // 20 and 24 bytes are fine. Workaround to do the fp16 to fp32 step on CPU... + // TODO Find the reason, fix and remove workaround. + const block_q5_0* b = (const block_q5_0*) host_b; + cl_host_b = (cl_block_q5_0*) malloc(sizeof(cl_block_q5_0) * global / 32); + for (size_t i = 0; i < global / 32; i++) { + cl_host_b[i].d = ggml_fp16_to_fp32(b[i].d); + memcpy(&cl_host_b[i].qh, b[i].qh, sizeof(uint32_t)); + memcpy(&cl_host_b[i].qs, b[i].qs, QK5_0 / 2); + } + host_b = (const float*) cl_host_b; + size_qb = global * (sizeof(float) + sizeof(uint32_t) + local) / 32; + break; + case GGML_TYPE_Q5_1: + dequant = true; + kernel = kernel_q5_1; + local = 16; + size_qb = global * (sizeof(ggml_fp16_t) * 2 + sizeof(uint32_t) + local) / 32; + break; + case GGML_TYPE_Q8_0: + dequant = true; + kernel = kernel_q8_0; + local = 32; + size_qb = global * (sizeof(float) + local) / 32; break; default: fprintf(stderr, "Error: Unsupported OpenCL btype %d\n", btype); @@ -171,12 +350,15 @@ void ggml_cl_sgemm_wrapper( err = clSetKernelArg(kernel, 0, sizeof(cl_mem), &cl_buffer_qb); err |= clSetKernelArg(kernel, 1, sizeof(cl_mem), &cl_buffer_b); CL_CHECK(err, "clSetKernelArg"); - clEnqueueWriteBuffer(queue, cl_buffer_qb, CL_FALSE, 0, size_qb, host_b, 0, NULL, &ev_qb); + err = clEnqueueWriteBuffer(queue, cl_buffer_qb, CL_FALSE, 0, size_qb, host_b, 0, NULL, &ev_qb); + CL_CHECK(err, "clEnqueueWriteBuffer qb"); } else { - clEnqueueWriteBuffer(queue, cl_buffer_b, CL_FALSE, 0, size_b, host_b, 0, NULL, &ev_b); + err = clEnqueueWriteBuffer(queue, cl_buffer_b, CL_FALSE, 0, size_b, host_b, 0, NULL, &ev_b); + CL_CHECK(err, "clEnqueueWriteBuffer b"); } - clEnqueueWriteBuffer(queue, cl_buffer_a, CL_FALSE, 0, size_a, host_a, 0, NULL, &ev_a); + err = clEnqueueWriteBuffer(queue, cl_buffer_a, CL_FALSE, 0, size_a, host_a, 0, NULL, &ev_a); + CL_CHECK(err, "clEnqueueWriteBuffer a"); if (dequant) { err = clEnqueueNDRangeKernel(queue, kernel, 1, NULL, &global, &local, 1, &ev_qb, &ev_b); CL_CHECK(err, "clEnqueueNDRangeKernel"); @@ -188,15 +370,20 @@ void ggml_cl_sgemm_wrapper( clReleaseEvent(ev_b); cl_event ev_sgemm; - CLBlastSgemm((CLBlastLayout)order, - (CLBlastTranspose)trans_a, (CLBlastTranspose)trans_b, - m, n, k, - alpha, - cl_buffer_a, 0, lda, - cl_buffer_b, 0, ldb, - beta, - cl_buffer_c, 0, ldc, - &queue, &ev_sgemm); + CLBlastStatusCode status = CLBlastSgemm((CLBlastLayout)order, + (CLBlastTranspose)trans_a, (CLBlastTranspose)trans_b, + m, n, k, + alpha, + cl_buffer_a, 0, lda, + cl_buffer_b, 0, ldb, + beta, + cl_buffer_c, 0, ldc, + &queue, &ev_sgemm); + + if (status != CLBlastSuccess) { + fprintf(stderr, "Error: CLBlast SGEMM %d\n", status); + abort(); + } cl_event ev_c; clEnqueueReadBuffer(queue, cl_buffer_c, CL_TRUE, 0, size_c, host_c, 1, &ev_sgemm, &ev_c); @@ -205,4 +392,7 @@ void ggml_cl_sgemm_wrapper( clWaitForEvents(1, &ev_c); clReleaseEvent(ev_sgemm); clReleaseEvent(ev_c); + if (btype == GGML_TYPE_Q5_0) { + free((void*) cl_host_b); + } }