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boinc/client/gpu_detect.cpp

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// This file is part of BOINC.
// http://boinc.berkeley.edu
// Copyright (C) 2009 University of California
//
// BOINC is free software; you can redistribute it and/or modify it
// under the terms of the GNU Lesser General Public License
// as published by the Free Software Foundation,
// either version 3 of the License, or (at your option) any later version.
//
// BOINC is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
// See the GNU Lesser General Public License for more details.
//
// You should have received a copy of the GNU Lesser General Public License
// along with BOINC. If not, see <http://www.gnu.org/licenses/>.
// client-specific GPU code. Mostly GPU detection
#define USE_CHILD_PROCESS_TO_DETECT_GPUS 1
#include "cpp.h"
#ifdef _WIN32
#include "boinc_win.h"
#ifdef _MSC_VER
#define snprintf _snprintf
#endif
#else
#include "config.h"
#include <setjmp.h>
#include <signal.h>
#endif
#include "coproc.h"
#include "file_names.h"
#include "util.h"
#include "str_replace.h"
using std::string;
using std::vector;
#ifndef _WIN32
jmp_buf resume;
void segv_handler(int) {
longjmp(resume, 1);
}
#endif
vector<COPROC_ATI> ati_gpus;
vector<COPROC_NVIDIA> nvidia_gpus;
vector<COPROC_INTEL> intel_gpus;
vector<OPENCL_DEVICE_PROP> ati_opencls;
vector<OPENCL_DEVICE_PROP> nvidia_opencls;
vector<OPENCL_DEVICE_PROP> intel_gpu_opencls;
static char* client_path;
void COPROCS::get(
bool use_all, vector<string>&descs, vector<string>&warnings,
IGNORE_GPU_INSTANCE& ignore_gpu_instance
) {
#if USE_CHILD_PROCESS_TO_DETECT_GPUS
int retval = 0;
char buf[256];
retval = launch_child_process_to_detect_gpus();
if (retval) {
snprintf(buf, sizeof(buf),
"launch_child_process_to_detect_gpus() returned error %d",
retval
);
warnings.push_back(buf);
}
retval = read_coproc_info_file(warnings);
if (retval) {
snprintf(buf, sizeof(buf),
"read_coproc_info_file() returned error %d",
retval
);
warnings.push_back(buf);
}
#else
detect_gpus(warnings);
#endif
correlate_gpus(use_all, descs, ignore_gpu_instance);
}
void COPROCS::detect_gpus(std::vector<std::string> &warnings) {
#ifdef _WIN32
try {
nvidia.get(warnings);
}
catch (...) {
warnings.push_back("Caught SIGSEGV in NVIDIA GPU detection");
}
try {
ati.get(warnings);
}
catch (...) {
warnings.push_back("Caught SIGSEGV in ATI GPU detection");
}
try {
intel_gpu.get(warnings);
}
catch (...) {
warnings.push_back("Caught SIGSEGV in INTEL GPU detection");
}
try {
// OpenCL detection must come last
get_opencl(warnings);
}
catch (...) {
warnings.push_back("Caught SIGSEGV in OpenCL detection");
}
#else
void (*old_sig)(int) = signal(SIGSEGV, segv_handler);
if (setjmp(resume)) {
warnings.push_back("Caught SIGSEGV in NVIDIA GPU detection");
} else {
nvidia.get(warnings);
}
#ifndef __APPLE__ // ATI does not yet support CAL on Macs
if (setjmp(resume)) {
warnings.push_back("Caught SIGSEGV in ATI GPU detection");
} else {
ati.get(warnings);
}
#endif
if (setjmp(resume)) {
warnings.push_back("Caught SIGSEGV in INTEL GPU detection");
} else {
intel_gpu.get(warnings);
}
if (setjmp(resume)) {
warnings.push_back("Caught SIGSEGV in OpenCL detection");
} else {
// OpenCL detection must come last
get_opencl(warnings);
}
signal(SIGSEGV, old_sig);
#endif
}
void COPROCS::correlate_gpus(
bool use_all,
std::vector<std::string> &descs,
IGNORE_GPU_INSTANCE &ignore_gpu_instance
) {
unsigned int i;
char buf[256], buf2[256];
nvidia.correlate(use_all, ignore_gpu_instance[PROC_TYPE_NVIDIA_GPU]);
ati.correlate(use_all, ignore_gpu_instance[PROC_TYPE_AMD_GPU]);
intel_gpu.correlate(use_all, ignore_gpu_instance[PROC_TYPE_AMD_GPU]);
correlate_opencl(use_all, ignore_gpu_instance);
for (i=0; i<nvidia_gpus.size(); i++) {
// This is really CUDA description
nvidia_gpus[i].description(buf, sizeof(buf));
switch(nvidia_gpus[i].is_used) {
case COPROC_IGNORED:
snprintf(buf2, sizeof(buf2),
"CUDA: NVIDIA GPU %d (ignored by config): %s",
nvidia_gpus[i].device_num, buf
);
break;
case COPROC_USED:
snprintf(buf2, sizeof(buf2),
"CUDA: NVIDIA GPU %d: %s",
nvidia_gpus[i].device_num, buf
);
break;
case COPROC_UNUSED:
default:
snprintf(buf2, sizeof(buf2),
"CUDA: NVIDIA GPU %d (not used): %s",
nvidia_gpus[i].device_num, buf
);
break;
}
descs.push_back(string(buf2));
}
for (i=0; i<ati_gpus.size(); i++) {
// This is really CAL description
ati_gpus[i].description(buf, sizeof(buf));
switch(ati_gpus[i].is_used) {
case COPROC_IGNORED:
snprintf(buf2, sizeof(buf2),
"CAL: ATI GPU %d (ignored by config): %s",
ati_gpus[i].device_num, buf
);
break;
case COPROC_USED:
snprintf(buf2, sizeof(buf2),
"CAL: ATI GPU %d: %s",
ati_gpus[i].device_num, buf
);
break;
case COPROC_UNUSED:
default:
snprintf(buf2, sizeof(buf2),
"CAL: ATI GPU %d: (not used) %s",
ati_gpus[i].device_num, buf
);
break;
}
descs.push_back(string(buf2));
}
// Create descriptions for OpenCL NVIDIA GPUs
//
for (i=0; i<nvidia_opencls.size(); i++) {
nvidia_opencls[i].description(buf, sizeof(buf), proc_type_name(PROC_TYPE_NVIDIA_GPU));
descs.push_back(string(buf));
}
// Create descriptions for OpenCL ATI GPUs
//
for (i=0; i<ati_opencls.size(); i++) {
ati_opencls[i].description(buf, sizeof(buf), proc_type_name(PROC_TYPE_AMD_GPU));
descs.push_back(string(buf));
}
// Create descriptions for OpenCL Intel GPUs
//
for (i=0; i<intel_gpu_opencls.size(); i++) {
intel_gpu_opencls[i].description(buf, sizeof(buf), proc_type_name(PROC_TYPE_INTEL_GPU));
descs.push_back(string(buf));
}
ati_gpus.clear();
nvidia_gpus.clear();
intel_gpus.clear();
ati_opencls.clear();
nvidia_opencls.clear();
intel_gpu_opencls.clear();
}
// Some dual-GPU laptops (e.g., Macbook Pro) don't
// power down the more powerful GPU until all
// applications which used them exit. To save
// battery life, the client launches a second
// instance of the client as a child process to
// detect and get information about the GPUs.
// The child process writes the info to a temp
// file which our main client then reads.
//
void COPROCS::set_path_to_client(char *path) {
client_path = path;
}
int COPROCS::write_coproc_info_file(vector<string> &warnings) {
MIOFILE mf;
unsigned int i, temp;
FILE* f;
f = boinc_fopen(COPROC_INFO_FILENAME, "wb");
if (!f) return ERR_FOPEN;
mf.init_file(f);
mf.printf(" <coprocs>\n");
for (i=0; i<ati_gpus.size(); ++i) {
ati_gpus[i].write_xml(mf, false);
}
for (i=0; i<nvidia_gpus.size(); ++i) {
temp = nvidia_gpus[i].count;
nvidia_gpus[i].count = 1;
nvidia_gpus[i].pci_infos[0] = nvidia_gpus[i].pci_info;
nvidia_gpus[i].write_xml(mf, false);
nvidia_gpus[i].count = temp;
}
for (i=0; i<intel_gpus.size(); ++i) {
intel_gpus[i].write_xml(mf, false);
}
for (i=0; i<ati_opencls.size(); ++i) {
ati_opencls[i].write_xml(mf, "ati_opencl", true);
}
for (i=0; i<nvidia_opencls.size(); ++i) {
nvidia_opencls[i].write_xml(mf, "nvidia_opencl", true);
}
for (i=0; i<intel_gpu_opencls.size(); ++i) {
intel_gpu_opencls[i].write_xml(mf, "intel_gpu_opencl", true);
}
for (i=0; i<warnings.size(); ++i) {
mf.printf("<warning>%s</warning>\n", warnings[i].c_str());
}
// TODO: write OpenCL info for CPU when implemented:
// gstate.host_info.have_cpu_opencl
// gstate.host_info.cpu_opencl_prop
mf.printf(" </coprocs>\n");
fclose(f);
return 0;
}
int COPROCS::read_coproc_info_file(vector<string> &warnings) {
MIOFILE mf;
int retval;
FILE* f;
string s;
COPROC_ATI ati_gpu;
COPROC_NVIDIA nvidia_gpu;
COPROC_INTEL intel_gpu;
OPENCL_DEVICE_PROP ati_opencl;
OPENCL_DEVICE_PROP nvidia_opencl;
OPENCL_DEVICE_PROP intel_gpu_opencl;
ati_gpus.clear();
nvidia_gpus.clear();
intel_gpus.clear();
ati_opencls.clear();
nvidia_opencls.clear();
intel_gpu_opencls.clear();
f = fopen(COPROC_INFO_FILENAME, "r");
if (!f) return ERR_FOPEN;
XML_PARSER xp(&mf);
mf.init_file(f);
if (!xp.parse_start("coprocs")) {
fclose(f);
return ERR_XML_PARSE;
}
while (!xp.get_tag()) {
if (xp.match_tag("/coprocs")) {
fclose(f);
return 0;
}
if (xp.match_tag("coproc_ati")) {
retval = ati_gpu.parse(xp);
if (retval) {
ati_gpu.clear();
} else {
ati_gpu.device_num = ati_gpus.size();
ati_gpus.push_back(ati_gpu);
}
continue;
}
if (xp.match_tag("coproc_cuda")) {
retval = nvidia_gpu.parse(xp);
if (retval) {
nvidia_gpu.clear();
} else {
nvidia_gpu.device_num = nvidia_gpus.size();
nvidia_gpu.pci_info = nvidia_gpu.pci_infos[0];
memset(&nvidia_gpu.pci_infos[0], 0, sizeof(struct PCI_INFO));
nvidia_gpus.push_back(nvidia_gpu);
}
continue;
}
if (xp.match_tag("coproc_intel_gpu")) {
retval = intel_gpu.parse(xp);
if (retval) {
intel_gpu.clear();
} else {
intel_gpu.device_num = nvidia_gpus.size();
intel_gpus.push_back(intel_gpu);
}
continue;
}
if (xp.match_tag("ati_opencl")) {
memset(&ati_opencl, 0, sizeof(ati_opencl));
retval = ati_opencl.parse(xp, "/ati_opencl");
if (retval) {
memset(&ati_opencl, 0, sizeof(ati_opencl));
} else {
ati_opencl.is_used = COPROC_IGNORED;
ati_opencls.push_back(ati_opencl);
}
continue;
}
if (xp.match_tag("nvidia_opencl")) {
memset(&nvidia_opencl, 0, sizeof(nvidia_opencl));
retval = nvidia_opencl.parse(xp, "/nvidia_opencl");
if (retval) {
memset(&nvidia_opencl, 0, sizeof(nvidia_opencl));
} else {
nvidia_opencl.is_used = COPROC_IGNORED;
nvidia_opencls.push_back(nvidia_opencl);
}
continue;
}
if (xp.match_tag("intel_gpu_opencl")) {
memset(&intel_gpu_opencl, 0, sizeof(intel_gpu_opencl));
retval = intel_gpu_opencl.parse(xp, "/intel_gpu_opencl");
if (retval) {
memset(&intel_gpu_opencl, 0, sizeof(intel_gpu_opencl));
} else {
intel_gpu_opencl.is_used = COPROC_IGNORED;
intel_gpu_opencls.push_back(intel_gpu_opencl);
}
continue;
}
if (xp.parse_string("warning", s)) {
warnings.push_back(s);
continue;
}
// TODO: parse OpenCL info for CPU when implemented:
// gstate.host_info.have_cpu_opencl
// gstate.host_info.cpu_opencl_prop
}
fclose(f);
return ERR_XML_PARSE;
}
int COPROCS::launch_child_process_to_detect_gpus() {
#ifdef _WIN32
HANDLE prog;
#else
int prog;
#endif
char dir[MAXPATHLEN];
int i;
int retval = 0;
boinc_delete_file(COPROC_INFO_FILENAME);
boinc_getcwd(dir);
int argc = 3;
char* const argv[3] = {
const_cast<char *>("boinc"),
const_cast<char *>("--detect_gpus"),
const_cast<char *>("")
};
retval = run_program(
dir,
client_path,
argc,
argv,
0,
prog
);
if (retval) return retval;
// Wait for child to run and exit
for (i=0; i<300; ++i) {
if (process_exists(prog)) break;
if (boinc_file_exists(COPROC_INFO_FILENAME)) break;
boinc_sleep(0.01);
}
for (i=0; i<300; ++i) {
if (!process_exists(prog)) break;
boinc_sleep(0.01);
}
return 0;
}
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