283 lines
9.6 KiB
C++
283 lines
9.6 KiB
C++
/*
|
|
* Copyright (c) 2014-2021, NVIDIA CORPORATION. All rights reserved.
|
|
*
|
|
* Permission is hereby granted, free of charge, to any person obtaining a
|
|
* copy of this software and associated documentation files (the "Software"),
|
|
* to deal in the Software without restriction, including without limitation
|
|
* the rights to use, copy, modify, merge, publish, distribute, sublicense,
|
|
* and/or sell copies of the Software, and to permit persons to whom the
|
|
* Software is furnished to do so, subject to the following conditions:
|
|
*
|
|
* The above copyright notice and this permission notice shall be included in
|
|
* all copies or substantial portions of the Software.
|
|
*
|
|
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
|
|
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
|
|
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
|
|
* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
|
|
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
|
|
* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
|
|
* DEALINGS IN THE SOFTWARE.
|
|
*/
|
|
|
|
#include <stdlib.h>
|
|
#include <getopt.h>
|
|
#include <memory.h>
|
|
#include <stdio.h>
|
|
#include <math.h>
|
|
#include <iostream>
|
|
#include <iomanip>
|
|
#include <cuda.h>
|
|
|
|
using namespace std;
|
|
|
|
#include "gdrapi.h"
|
|
#include "common.hpp"
|
|
|
|
using namespace gdrcopy::test;
|
|
|
|
// manually tuned...
|
|
int num_write_iters = 10000;
|
|
int num_read_iters = 100;
|
|
size_t _size = 128*1024;
|
|
size_t copy_size = 0;
|
|
size_t copy_offset = 0;
|
|
int dev_id = 0;
|
|
|
|
void print_usage(const char *path)
|
|
{
|
|
cout << "Usage: " << path << " [-h][-s <size>][-c <size>][-o <offset>][-d <gpu>][-w <iters>][-r <iters>][-a <fn>]" << endl;
|
|
cout << endl;
|
|
cout << "Options:" << endl;
|
|
cout << " -h Print this help text" << endl;
|
|
cout << " -s <size> Buffer allocation size (default: " << _size << ")" << endl;
|
|
cout << " -c <size> Copy size (default: " << copy_size << ")" << endl;
|
|
cout << " -o <offset> Copy offset (default: " << copy_offset << ")" << endl;
|
|
cout << " -d <gpu> GPU ID (default: " << dev_id << ")" << endl;
|
|
cout << " -w <iters> Number of write iterations (default: " << num_write_iters << ")" << endl;
|
|
cout << " -r <iters> Number of read iterations (default: " << num_read_iters << ")" << endl;
|
|
cout << " -a <fn> GPU buffer allocation function (default: cuMemAlloc)" << endl;
|
|
cout << " Choices: cuMemAlloc, cuMemCreate" << endl;
|
|
}
|
|
|
|
void run_test(CUdeviceptr d_A, size_t size)
|
|
{
|
|
uint32_t *init_buf = NULL;
|
|
ASSERTDRV(cuMemAllocHost((void **)&init_buf, size));
|
|
ASSERT_NEQ(init_buf, (void*)0);
|
|
init_hbuf_walking_bit(init_buf, size);
|
|
|
|
gdr_t g = gdr_open_safe();
|
|
|
|
gdr_mh_t mh;
|
|
BEGIN_CHECK {
|
|
// tokens are optional in CUDA 6.0
|
|
// wave out the test if GPUDirectRDMA is not enabled
|
|
BREAK_IF_NEQ(gdr_pin_buffer(g, d_A, size, 0, 0, &mh), 0);
|
|
ASSERT_NEQ(mh, null_mh);
|
|
|
|
void *map_d_ptr = NULL;
|
|
ASSERT_EQ(gdr_map(g, mh, &map_d_ptr, size), 0);
|
|
cout << "map_d_ptr: " << map_d_ptr << endl;
|
|
|
|
gdr_info_t info;
|
|
ASSERT_EQ(gdr_get_info(g, mh, &info), 0);
|
|
cout << "info.va: " << hex << info.va << dec << endl;
|
|
cout << "info.mapped_size: " << info.mapped_size << endl;
|
|
cout << "info.page_size: " << info.page_size << endl;
|
|
cout << "info.mapped: " << info.mapped << endl;
|
|
cout << "info.wc_mapping: " << info.wc_mapping << endl;
|
|
|
|
// remember that mappings start on a 64KB boundary, so let's
|
|
// calculate the offset from the head of the mapping to the
|
|
// beginning of the buffer
|
|
int off = info.va - d_A;
|
|
cout << "page offset: " << off << endl;
|
|
|
|
uint32_t *buf_ptr = (uint32_t *)((char *)map_d_ptr + off);
|
|
cout << "user-space pointer:" << buf_ptr << endl;
|
|
|
|
// copy to GPU benchmark
|
|
cout << "writing test, size=" << copy_size << " offset=" << copy_offset << " num_iters=" << num_write_iters << endl;
|
|
struct timespec beg, end;
|
|
clock_gettime(MYCLOCK, &beg);
|
|
for (int iter=0; iter<num_write_iters; ++iter)
|
|
gdr_copy_to_mapping(mh, buf_ptr + copy_offset/4, init_buf, copy_size);
|
|
clock_gettime(MYCLOCK, &end);
|
|
|
|
double woMBps;
|
|
{
|
|
double byte_count = (double) copy_size * num_write_iters;
|
|
double dt_ms = (end.tv_nsec-beg.tv_nsec)/1000000.0 + (end.tv_sec-beg.tv_sec)*1000.0;
|
|
double Bps = byte_count / dt_ms * 1e3;
|
|
woMBps = Bps / 1024.0 / 1024.0;
|
|
cout << "write BW: " << woMBps << "MB/s" << endl;
|
|
}
|
|
|
|
compare_buf(init_buf, buf_ptr + copy_offset/4, copy_size);
|
|
|
|
// copy from GPU benchmark
|
|
cout << "reading test, size=" << copy_size << " offset=" << copy_offset << " num_iters=" << num_read_iters << endl;
|
|
clock_gettime(MYCLOCK, &beg);
|
|
for (int iter=0; iter<num_read_iters; ++iter)
|
|
gdr_copy_from_mapping(mh, init_buf, buf_ptr + copy_offset/4, copy_size);
|
|
clock_gettime(MYCLOCK, &end);
|
|
|
|
double roMBps;
|
|
{
|
|
double byte_count = (double) copy_size * num_read_iters;
|
|
double dt_ms = (end.tv_nsec-beg.tv_nsec)/1000000.0 + (end.tv_sec-beg.tv_sec)*1000.0;
|
|
double Bps = byte_count / dt_ms * 1e3;
|
|
roMBps = Bps / 1024.0 / 1024.0;
|
|
cout << "read BW: " << roMBps << "MB/s" << endl;
|
|
}
|
|
|
|
cout << "unmapping buffer" << endl;
|
|
ASSERT_EQ(gdr_unmap(g, mh, map_d_ptr, size), 0);
|
|
|
|
cout << "unpinning buffer" << endl;
|
|
ASSERT_EQ(gdr_unpin_buffer(g, mh), 0);
|
|
} END_CHECK;
|
|
|
|
cout << "closing gdrdrv" << endl;
|
|
ASSERT_EQ(gdr_close(g), 0);
|
|
}
|
|
|
|
int main(int argc, char *argv[])
|
|
{
|
|
gpu_memalloc_fn_t galloc_fn = gpu_mem_alloc;
|
|
gpu_memfree_fn_t gfree_fn = gpu_mem_free;
|
|
|
|
while(1) {
|
|
int c;
|
|
c = getopt(argc, argv, "s:d:o:c:w:r:a:h");
|
|
if (c == -1)
|
|
break;
|
|
|
|
switch (c) {
|
|
case 's':
|
|
_size = strtol(optarg, NULL, 0);
|
|
break;
|
|
case 'c':
|
|
copy_size = strtol(optarg, NULL, 0);
|
|
break;
|
|
case 'o':
|
|
copy_offset = strtol(optarg, NULL, 0);
|
|
break;
|
|
case 'd':
|
|
dev_id = strtol(optarg, NULL, 0);
|
|
break;
|
|
case 'w':
|
|
num_write_iters = strtol(optarg, NULL, 0);
|
|
break;
|
|
case 'r':
|
|
num_read_iters = strtol(optarg, NULL, 0);
|
|
break;
|
|
case 'a':
|
|
if (strcmp(optarg, "cuMemAlloc") == 0) {
|
|
galloc_fn = gpu_mem_alloc;
|
|
gfree_fn = gpu_mem_free;
|
|
}
|
|
else if (strcmp(optarg, "cuMemCreate") == 0) {
|
|
galloc_fn = gpu_vmm_alloc;
|
|
gfree_fn = gpu_vmm_free;
|
|
}
|
|
else {
|
|
cerr << "Unrecognized fn argument" << endl;
|
|
exit(EXIT_FAILURE);
|
|
}
|
|
break;
|
|
case 'h':
|
|
print_usage(argv[0]);
|
|
exit(EXIT_SUCCESS);
|
|
default:
|
|
fprintf(stderr, "ERROR: invalid option\n");
|
|
exit(EXIT_FAILURE);
|
|
}
|
|
}
|
|
|
|
if (!copy_size)
|
|
copy_size = _size;
|
|
|
|
if (copy_offset % sizeof(uint32_t) != 0) {
|
|
fprintf(stderr, "ERROR: offset must be multiple of 4 bytes\n");
|
|
exit(EXIT_FAILURE);
|
|
}
|
|
|
|
if (copy_offset + copy_size > _size) {
|
|
fprintf(stderr, "ERROR: offset + copy size run past the end of the buffer\n");
|
|
exit(EXIT_FAILURE);
|
|
}
|
|
|
|
size_t size = PAGE_ROUND_UP(_size, GPU_PAGE_SIZE);
|
|
|
|
ASSERTDRV(cuInit(0));
|
|
|
|
int n_devices = 0;
|
|
ASSERTDRV(cuDeviceGetCount(&n_devices));
|
|
|
|
CUdevice dev;
|
|
for (int n=0; n<n_devices; ++n) {
|
|
|
|
char dev_name[256];
|
|
int dev_pci_domain_id;
|
|
int dev_pci_bus_id;
|
|
int dev_pci_device_id;
|
|
|
|
ASSERTDRV(cuDeviceGet(&dev, n));
|
|
ASSERTDRV(cuDeviceGetName(dev_name, sizeof(dev_name) / sizeof(dev_name[0]), dev));
|
|
ASSERTDRV(cuDeviceGetAttribute(&dev_pci_domain_id, CU_DEVICE_ATTRIBUTE_PCI_DOMAIN_ID, dev));
|
|
ASSERTDRV(cuDeviceGetAttribute(&dev_pci_bus_id, CU_DEVICE_ATTRIBUTE_PCI_BUS_ID, dev));
|
|
ASSERTDRV(cuDeviceGetAttribute(&dev_pci_device_id, CU_DEVICE_ATTRIBUTE_PCI_DEVICE_ID, dev));
|
|
|
|
cout << "GPU id:" << n << "; name: " << dev_name
|
|
<< "; Bus id: "
|
|
<< std::hex
|
|
<< std::setfill('0') << std::setw(4) << dev_pci_domain_id
|
|
<< ":" << std::setfill('0') << std::setw(2) << dev_pci_bus_id
|
|
<< ":" << std::setfill('0') << std::setw(2) << dev_pci_device_id
|
|
<< std::dec
|
|
<< endl;
|
|
}
|
|
cout << "selecting device " << dev_id << endl;
|
|
ASSERTDRV(cuDeviceGet(&dev, dev_id));
|
|
|
|
|
|
CUcontext dev_ctx;
|
|
ASSERTDRV(cuDevicePrimaryCtxRetain(&dev_ctx, dev));
|
|
ASSERTDRV(cuCtxSetCurrent(dev_ctx));
|
|
|
|
cout << "testing size: " << _size << endl;
|
|
cout << "rounded size: " << size << endl;
|
|
|
|
ASSERT_EQ(check_gdr_support(dev), true);
|
|
|
|
if (galloc_fn == gpu_mem_alloc)
|
|
cout << "gpu alloc fn: cuMemAlloc" << endl;
|
|
else
|
|
cout << "gpu alloc fn: cuMemCreate" << endl;
|
|
|
|
CUdeviceptr d_A;
|
|
gpu_mem_handle_t mhandle;
|
|
ASSERTDRV(galloc_fn(&mhandle, size, true, true));
|
|
d_A = mhandle.ptr;
|
|
cout << "device ptr: " << hex << d_A << dec << endl;
|
|
|
|
run_test(d_A, size);
|
|
|
|
ASSERTDRV(gfree_fn(&mhandle));
|
|
|
|
ASSERTDRV(cuDevicePrimaryCtxRelease(dev));
|
|
|
|
return 0;
|
|
}
|
|
|
|
/*
|
|
* Local variables:
|
|
* c-indent-level: 4
|
|
* c-basic-offset: 4
|
|
* tab-width: 4
|
|
* indent-tabs-mode: nil
|
|
* End:
|
|
*/
|