[Beignet] [PATCH] Add read buffer/image benchmark.
Yang Rong
rong.r.yang at intel.com
Mon Dec 15 22:29:18 PST 2014
Add there two benchmark to compare the buffer and image performance.
Signed-off-by: Yang Rong <rong.r.yang at intel.com>
---
benchmark/CMakeLists.txt | 4 ++-
benchmark/benchmark_read_buffer.cpp | 50 +++++++++++++++++++++++++++
benchmark/benchmark_read_image.cpp | 68 +++++++++++++++++++++++++++++++++++++
kernels/compiler_read_buffer.cl | 15 ++++++++
kernels/compiler_read_image.cl | 25 ++++++++++++++
5 files changed, 161 insertions(+), 1 deletion(-)
create mode 100644 benchmark/benchmark_read_buffer.cpp
create mode 100644 benchmark/benchmark_read_image.cpp
create mode 100644 kernels/compiler_read_buffer.cl
create mode 100644 kernels/compiler_read_image.cl
diff --git a/benchmark/CMakeLists.txt b/benchmark/CMakeLists.txt
index ac2d8aa..9a2bd77 100644
--- a/benchmark/CMakeLists.txt
+++ b/benchmark/CMakeLists.txt
@@ -12,7 +12,9 @@ set (benchmark_sources
../utests/utest_helper.cpp
../utests/vload_bench.cpp
enqueue_copy_buf.cpp
- benchmark_use_host_ptr_buffer.cpp)
+ benchmark_use_host_ptr_buffer.cpp
+ benchmark_read_buffer.cpp
+ benchmark_read_image.cpp)
SET(CMAKE_CXX_FLAGS "-DBUILD_BENCHMARK ${CMAKE_CXX_FLAGS}")
diff --git a/benchmark/benchmark_read_buffer.cpp b/benchmark/benchmark_read_buffer.cpp
new file mode 100644
index 0000000..f95fff8
--- /dev/null
+++ b/benchmark/benchmark_read_buffer.cpp
@@ -0,0 +1,50 @@
+#include "utests/utest_helper.hpp"
+#include <sys/time.h>
+
+int benchmark_read_buffer(void)
+{
+ struct timeval start,stop;
+
+ const size_t n = 1024 * 1024;
+ int count = 16;
+ const size_t sz = 4 * n * count;
+
+ OCL_CREATE_BUFFER(buf[0], 0, sz * sizeof(float), NULL);
+ OCL_CREATE_BUFFER(buf[1], 0, sz * sizeof(float), NULL);
+ OCL_CREATE_BUFFER(buf[2], 0, sz * sizeof(float), NULL);
+
+ OCL_CREATE_KERNEL("compiler_read_buffer");
+
+ OCL_SET_ARG(0, sizeof(cl_mem), &buf[0]);
+ OCL_SET_ARG(1, sizeof(cl_mem), &buf[1]);
+ OCL_SET_ARG(2, sizeof(cl_mem), &buf[2]);
+
+ OCL_MAP_BUFFER(0);
+ OCL_MAP_BUFFER(1);
+ for (size_t i = 0; i < sz; i ++) {
+ ((float *)(buf_data[0]))[i] = rand();
+ ((float *)(buf_data[1]))[i] = rand();
+ }
+ OCL_UNMAP_BUFFER(0);
+ OCL_UNMAP_BUFFER(1);
+
+ // Setup kernel and buffers
+ globals[0] = n;
+ locals[0] = 256;
+
+ gettimeofday(&start,0);
+ for (size_t i=0; i<100; i++) {
+ OCL_NDRANGE(1);
+ }
+ OCL_FINISH();
+ gettimeofday(&stop,0);
+
+ clReleaseMemObject(buf[0]);
+ free(buf_data[0]);
+ buf_data[0] = NULL;
+
+ return time_subtract(&stop, &start, 0);
+}
+
+MAKE_BENCHMARK_FROM_FUNCTION(benchmark_read_buffer);
+
diff --git a/benchmark/benchmark_read_image.cpp b/benchmark/benchmark_read_image.cpp
new file mode 100644
index 0000000..baae866
--- /dev/null
+++ b/benchmark/benchmark_read_image.cpp
@@ -0,0 +1,68 @@
+#include <string.h>
+#include "utests/utest_helper.hpp"
+#include <sys/time.h>
+
+int benchmark_read_image(void)
+{
+ struct timeval start,stop;
+
+ const size_t x_count = 4;
+ const size_t y_count = 4;
+ const size_t w = 1024;
+ const size_t h = 1024;
+ const size_t sz = 4 * x_count * y_count * w * h;
+ cl_image_format format;
+ cl_image_desc desc;
+
+ memset(&desc, 0x0, sizeof(cl_image_desc));
+ memset(&format, 0x0, sizeof(cl_image_format));
+
+ // Setup kernel and images
+ OCL_CREATE_KERNEL("compiler_read_image");
+ buf_data[0] = (uint32_t*) malloc(sizeof(float) * sz);
+ buf_data[1] = (uint32_t*) malloc(sizeof(float) * sz);
+ for (uint32_t i = 0; i < sz; ++i) {
+ ((float*)buf_data[0])[i] = rand();
+ ((float*)buf_data[1])[i] = rand();
+ }
+
+ format.image_channel_order = CL_RGBA;
+ format.image_channel_data_type = CL_FLOAT;
+ desc.image_type = CL_MEM_OBJECT_IMAGE2D;
+ desc.image_width = w;
+ desc.image_height = h;
+ desc.image_row_pitch = w * sizeof(float) * 4;
+ OCL_CREATE_IMAGE(buf[0], CL_MEM_COPY_HOST_PTR, &format, &desc, buf_data[0]);
+ OCL_CREATE_IMAGE(buf[1], CL_MEM_COPY_HOST_PTR, &format, &desc, buf_data[1]);
+ OCL_CREATE_BUFFER(buf[2], 0, sz * sizeof(float), NULL);
+
+ free(buf_data[0]);
+ buf_data[0] = NULL;
+ free(buf_data[1]);
+ buf_data[1] = NULL;
+
+ // Run the kernel
+ OCL_SET_ARG(0, sizeof(cl_mem), &buf[0]);
+ OCL_SET_ARG(1, sizeof(cl_mem), &buf[1]);
+ OCL_SET_ARG(2, sizeof(cl_mem), &buf[2]);
+ globals[0] = w;
+ globals[1] = h;
+ locals[0] = 16;
+ locals[1] = 16;
+
+ gettimeofday(&start,0);
+ for (size_t i=0; i<100; i++) {
+ OCL_NDRANGE(2);
+ }
+ OCL_FINISH();
+ gettimeofday(&stop,0);
+
+ clReleaseMemObject(buf[0]);
+ free(buf_data[0]);
+ buf_data[0] = NULL;
+
+ return time_subtract(&stop, &start, 0);
+}
+
+MAKE_BENCHMARK_FROM_FUNCTION(benchmark_read_image);
+
diff --git a/kernels/compiler_read_buffer.cl b/kernels/compiler_read_buffer.cl
new file mode 100644
index 0000000..b6c11bd
--- /dev/null
+++ b/kernels/compiler_read_buffer.cl
@@ -0,0 +1,15 @@
+#define COUNT 16
+
+__kernel void
+compiler_read_buffer(__global float4* src0, __global float4* src1, __global float4* dst)
+{
+ float4 sum = 0;
+ int offset = 0, i = 0;
+ int id = (int)get_global_id(0);
+ int sz = (int)get_global_size(0);
+ for(i=0; i<COUNT; i++) {
+ sum = sum + src0[offset + i] + src1[offset + i];
+ offset += sz;
+ }
+ dst[id] = sum;
+}
diff --git a/kernels/compiler_read_image.cl b/kernels/compiler_read_image.cl
new file mode 100644
index 0000000..ea8909b
--- /dev/null
+++ b/kernels/compiler_read_image.cl
@@ -0,0 +1,25 @@
+#define X_COUNT 4
+#define Y_COUNT 4
+
+__kernel void
+compiler_read_image(__read_only image2d_t src0, __read_only image2d_t src1, __global float4* dst)
+{
+ float4 sum = 0;
+ int2 coord;
+ int x_sz = (int)get_global_size(0);
+ int y_sz = (int)get_global_size(0);
+ const sampler_t sampler = CLK_NORMALIZED_COORDS_FALSE| CLK_ADDRESS_CLAMP| CLK_FILTER_NEAREST;
+ int i, j;
+
+ int x = (int)get_global_id(0);
+ int y = (int)get_global_id(1);
+
+ for(i=0; i<X_COUNT; i++) {
+ for(j=0; j<Y_COUNT; j++) {
+ sum = sum + read_imagef(src0, sampler, coord) + read_imagef(src1, sampler, coord);
+ coord.y = y + j * y_sz;
+ }
+ coord.x = x + i * x_sz;
+ }
+ dst[y * x_sz + x] = sum;
+}
--
1.8.3.2
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