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boinc/lib/coproc.C

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// This file is part of BOINC.
// http://boinc.berkeley.edu
// Copyright (C) 2008 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/>.
#include <stdio.h>
#include <string.h>
#include <stdlib.h>
#ifdef _WIN32
#else
#ifdef __APPLE__
// Suppress obsolete warning when building for OS 10.3.9
#define DLOPEN_NO_WARN
#endif
#include <dlfcn.h>
#endif
#include "error_numbers.h"
#include "filesys.h"
#include "parse.h"
#include "coproc.h"
using std::string;
using std::vector;
#ifndef _USING_FCGI_
void COPROC::write_xml(MIOFILE& f) {
f.printf(
"<coproc>\n"
" <type>%s</type>\n"
" <count>%d</count>\n"
"</coproc>\n",
type, count
);
}
#endif
int COPROC::parse(MIOFILE& fin) {
char buf[1024];
strcpy(type, "");
count = 0;
used = 0;
while (fin.fgets(buf, sizeof(buf))) {
if (match_tag(buf, "</coproc>")) {
if (!strlen(type)) return ERR_XML_PARSE;
return 0;
}
if (parse_str(buf, "<type>", type, sizeof(type))) continue;
if (parse_int(buf, "<count>", count)) continue;
}
return ERR_XML_PARSE;
}
vector<string> COPROCS::get() {
vector<string> strings;
const char* p = COPROC_CUDA::get(*this);
if (p) strings.push_back(p);
p = COPROC_CELL_SPE::get(*this);
if (p) strings.push_back(p);
return strings;
}
int COPROCS::parse(FILE* fin) {
char buf[1024];
while (fgets(buf, sizeof(buf), fin)) {
if (match_tag(buf, "</coprocs>")) {
return 0;
}
if (strstr(buf, "<coproc_cuda>")) {
COPROC_CUDA* cc = new COPROC_CUDA;
int retval = cc->parse(fin);
if (!retval) {
coprocs.push_back(cc);
}
}
}
return ERR_XML_PARSE;
}
COPROC* COPROCS::lookup(char* type) {
for (unsigned int i=0; i<coprocs.size(); i++) {
COPROC* cp = coprocs[i];
if (!strcmp(type, cp->type)) return cp;
}
return NULL;
}
#ifdef _WIN32
#endif
const char* COPROC_CUDA::get(COPROCS& coprocs) {
int count;
#ifdef _WIN32
typedef int (__stdcall *PCGDC)(int *count);
typedef int (__stdcall *PCGDP)(struct cudaDeviceProp *prop, int device);
PCGDC __cudaGetDeviceCount = NULL;
PCGDP __cudaGetDeviceProperties = NULL;
HMODULE cudalib = LoadLibrary("cudart.dll");
if (!cudalib) {
return "Can't load library cudart.dll";
}
__cudaGetDeviceCount = (PCGDC)GetProcAddress( cudalib, "cudaGetDeviceCount" );
if (!__cudaGetDeviceCount) {
return "Library doesn't have cudaGetDeviceCount()";
}
__cudaGetDeviceProperties = (PCGDP)GetProcAddress( cudalib, "cudaGetDeviceProperties" );
if (!__cudaGetDeviceProperties) {
return "Library doesn't have cudaGetDeviceProperties()";
}
#else
void* cudalib;
void (*__cudaGetDeviceCount)(int*);
void (*__cudaGetDeviceProperties)(cudaDeviceProp*, int);
#ifdef __APPLE__
cudalib = dlopen("./libcudart.dylib", RTLD_NOW);
#else
cudalib = dlopen("./libcudart.so", RTLD_NOW);
#endif
if (!cudalib) {
return "Can't load library libcudart";
perror("dlopen");
}
__cudaGetDeviceCount = (void(*)(int*)) dlsym(cudalib, "cudaGetDeviceCount");
if(!__cudaGetDeviceCount) {
return "Library doesn't have cudaGetDeviceCount()";
}
__cudaGetDeviceProperties = (void(*)(cudaDeviceProp*, int)) dlsym( cudalib, "cudaGetDeviceProperties" );
if (!__cudaGetDeviceProperties) {
return "Library doesn't have cudaGetDeviceProperties()";
}
#endif
// NOTE: our design is slightly flawed:
// there's no provision for having two coprocs of type CUDA.
// So on systems with two GPUs (possibly of different hardware types)
// we have to count them as two of the same type.
//
(*__cudaGetDeviceCount)(&count);
int real_count = 0;
COPROC_CUDA cc, cc2;
for (int i=0; i<count; i++) {
(*__cudaGetDeviceProperties)(&cc.prop, i);
if (cc.prop.major == 0) break; // major == 0 means emulation
if (cc.prop.major > 100) break; // e.g. 9999 is an error
cc2 = cc;
real_count++;
}
if (real_count) {
COPROC_CUDA* ccp = new COPROC_CUDA;
*ccp = cc2;
ccp->count = real_count;
strcpy(ccp->type, "CUDA");
coprocs.coprocs.push_back(ccp);
} else {
return "No CUDA devices found";
}
return "CUDA devices found";
}
// add a non-existent CUDA coproc (for debugging)
//
void fake_cuda(COPROCS& coprocs, int count) {
COPROC_CUDA* cc = new COPROC_CUDA;
strcpy(cc->type, "CUDA");
cc->count = count;
strcpy(cc->prop.name, "CUDA NVIDIA chip");
cc->prop.totalGlobalMem = 1000;
cc->prop.sharedMemPerBlock = 100;
cc->prop.regsPerBlock = 8;
cc->prop.warpSize = 10;
cc->prop.memPitch = 10;
cc->prop.maxThreadsPerBlock = 20;
cc->prop.maxThreadsDim[0] = 2;
cc->prop.maxThreadsDim[1] = 2;
cc->prop.maxThreadsDim[2] = 2;
cc->prop.maxGridSize[0] = 10;
cc->prop.maxGridSize[1] = 10;
cc->prop.maxGridSize[2] = 10;
cc->prop.totalConstMem = 10;
cc->prop.major = 1;
cc->prop.minor = 1;
cc->prop.clockRate = 10000;
cc->prop.textureAlignment = 1000;
coprocs.coprocs.push_back(cc);
}
#ifndef _USING_FCGI_
void COPROC_CUDA::write_xml(MIOFILE& f) {
f.printf(
"<coproc_cuda>\n"
" <count>%d</count>\n"
" <name>%s</name>\n"
" <totalGlobalMem>%u</totalGlobalMem>\n"
" <sharedMemPerBlock>%u</sharedMemPerBlock>\n"
" <regsPerBlock>%d</regsPerBlock>\n"
" <warpSize>%d</warpSize>\n"
" <memPitch>%u</memPitch>\n"
" <maxThreadsPerBlock>%d</maxThreadsPerBlock>\n"
" <maxThreadsDim>%d %d %d</maxThreadsDim>\n"
" <maxGridSize>%d %d %d</maxGridSize>\n"
" <totalConstMem>%u</totalConstMem>\n"
" <major>%d</major>\n"
" <minor>%d</minor>\n"
" <clockRate>%d</clockRate>\n"
" <textureAlignment>%u</textureAlignment>\n"
"</coproc_cuda>\n",
count,
prop.name,
(unsigned int)prop.totalGlobalMem,
(unsigned int)prop.sharedMemPerBlock,
prop.regsPerBlock,
prop.warpSize,
(unsigned int)prop.memPitch,
prop.maxThreadsPerBlock,
prop.maxThreadsDim[0], prop.maxThreadsDim[1], prop.maxThreadsDim[2],
prop.maxGridSize[0], prop.maxGridSize[1], prop.maxGridSize[2],
(unsigned int)prop.totalConstMem,
prop.major,
prop.minor,
prop.clockRate,
(unsigned int)prop.textureAlignment
);
}
#endif
void COPROC_CUDA::clear() {
count = 0;
strcpy(prop.name, "");
prop.totalGlobalMem = 0;
prop.sharedMemPerBlock = 0;
prop.regsPerBlock = 0;
prop.warpSize = 0;
prop.memPitch = 0;
prop.maxThreadsPerBlock = 0;
prop.maxThreadsDim[0] = 0;
prop.maxThreadsDim[1] = 0;
prop.maxThreadsDim[2] = 0;
prop.maxGridSize[0] = 0;
prop.maxGridSize[1] = 0;
prop.maxGridSize[2] = 0;
prop.totalConstMem = 0;
prop.major = 0;
prop.minor = 0;
prop.clockRate = 0;
prop.textureAlignment = 0;
}
int COPROC_CUDA::parse(FILE* fin) {
char buf[1024], buf2[256];
clear();
while (fgets(buf, sizeof(buf), fin)) {
if (strstr(buf, "</coproc_cuda>")) return 0;
if (parse_int(buf, "<count>", count)) continue;
if (parse_str(buf, "<name>", prop.name, sizeof(prop.name))) continue;
if (parse_int(buf, "<totalGlobalMem>", (int&)prop.totalGlobalMem)) continue;
if (parse_int(buf, "<sharedMemPerBlock>", (int&)prop.sharedMemPerBlock)) continue;
if (parse_int(buf, "<regsPerBlock>", prop.regsPerBlock)) continue;
if (parse_int(buf, "<warpSize>", prop.warpSize)) continue;
if (parse_int(buf, "<memPitch>", (int&)prop.memPitch)) continue;
if (parse_int(buf, "<maxThreadsPerBlock>", prop.maxThreadsPerBlock)) continue;
if (parse_str(buf, "<maxThreadsDim>", buf2, sizeof(buf2))) {
// can't use sscanf here (FCGI)
//
prop.maxThreadsDim[0] = atoi(buf2);
char* p = strchr(buf2, ' ');
if (p) {
prop.maxThreadsDim[1] = atoi(p);
p = strchr(p, ' ');
if (p) {
prop.maxThreadsDim[2] = atoi(p);
}
}
continue;
}
if (parse_str(buf, "<maxGridSize>", buf2, sizeof(buf2))) {
prop.maxGridSize[0] = atoi(buf2);
char* p = strchr(buf2, ' ');
if (p) {
prop.maxGridSize[1] = atoi(p);
p = strchr(p, ' ');
if (p) {
prop.maxGridSize[2] = atoi(p);
}
}
continue;
}
if (parse_int(buf, "<totalConstMem>", (int&)prop.totalConstMem)) continue;
if (parse_int(buf, "<major>", prop.major)) continue;
if (parse_int(buf, "<minor>", prop.minor)) continue;
if (parse_int(buf, "<clockRate>", prop.clockRate)) continue;
if (parse_int(buf, "<textureAlignment>", (int&)prop.textureAlignment)) continue;
}
return ERR_XML_PARSE;
}
void COPROC_CUDA::description(char* p) {
sprintf(p, "%s (%d)", prop.name, count);
}
const char* COPROC_CELL_SPE::get(COPROCS&) {
return NULL;
}
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