GOSTSec/ccminer-gostd-lite
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affinity: do not mix cpu count with gpu one

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and update the old var with active gpus if -d is set
This commit is contained in:
Tanguy Pruvot 2014-11-22 21:53:35 +01:00
parent 3be08ad944
commit b824a63cde
2 changed files with 33 additions and 11 deletions
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38
ccminer.cpp
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@ -206,6 +206,7 @@ int opt_n_threads = 0;
static double opt_difficulty = 1; // CH
bool opt_trust_pool = false;
uint16_t opt_vote = 9999;
int num_cpus;
int num_processors;
int device_map[8] = {0,1,2,3,4,5,6,7}; // CB
char *device_name[8]; // CB
@ -986,13 +987,12 @@ static void *miner_thread(void *userdata)
drop_policy();
}
/* Cpu affinity only makes sense if the number of threads is a multiple
* of the number of CPUs */
if (num_processors > 1 && opt_n_threads % num_processors == 0) {
/* Cpu thread affinity */
if (num_cpus > 1) {
if (!opt_quiet)
applog(LOG_DEBUG, "Binding thread %d to gpu %d", thr_id,
thr_id % num_processors);
affine_to_cpu(thr_id, thr_id % num_processors);
applog(LOG_DEBUG, "Binding thread %d to cpu %d", thr_id,
thr_id % num_cpus);
affine_to_cpu(thr_id, thr_id % num_cpus);
}
while (1) {
@ -1846,12 +1846,13 @@ static void parse_arg(int key, char *arg)
break;
case 'd': // CB
{
int ngpus = cuda_num_devices();
char * pch = strtok (arg,",");
opt_n_threads = 0;
while (pch != NULL) {
if (pch[0] >= '0' && pch[0] <= '9' && pch[1] == '\0')
{
if (atoi(pch) < num_processors)
if (atoi(pch) < ngpus)
device_map[opt_n_threads++] = atoi(pch);
else {
applog(LOG_ERR, "Non-existant CUDA device #%d specified in -d option", atoi(pch));
@ -1859,13 +1860,15 @@ static void parse_arg(int key, char *arg)
}
} else {
int device = cuda_finddevice(pch);
if (device >= 0 && device < num_processors)
if (device >= 0 && device < ngpus)
device_map[opt_n_threads++] = device;
else {
applog(LOG_ERR, "Non-existant CUDA device '%s' specified in -d option", pch);
proper_exit(1);
}
}
// set number of active gpus
num_processors = opt_n_threads;
pch = strtok (NULL, ",");
}
}
@ -2026,6 +2029,25 @@ int main(int argc, char *argv[])
rpc_pass = strdup("");
pthread_mutex_init(&applog_lock, NULL);
// number of cpus for thread affinity
#if defined(WIN32)
SYSTEM_INFO sysinfo;
GetSystemInfo(&sysinfo);
num_cpus = sysinfo.dwNumberOfProcessors;
#elif defined(_SC_NPROCESSORS_CONF)
num_cpus = sysconf(_SC_NPROCESSORS_CONF);
#elif defined(CTL_HW) && defined(HW_NCPU)
int req[] = { CTL_HW, HW_NCPU };
size_t len = sizeof(num_cpus);
sysctl(req, 2, &num_cpus, &len, NULL, 0);
#else
num_cpus = 1;
#endif
if (num_cpus < 1)
num_cpus = 1;
// number of gpus
num_processors = cuda_num_devices();
cuda_devicenames();

6
nvml.cpp
View File

@ -30,7 +30,6 @@
#include "nvml.h"
extern wrap_nvml_handle *hnvml;
extern int num_processors; // gpus
static uint32_t device_bus_ids[8] = { 0 };
@ -531,6 +530,7 @@ int nvapi_getbusid(unsigned int devNum, int *busid)
int wrap_nvapi_init()
{
int num_gpus = cuda_num_devices();
NvAPI_Status ret = NvAPI_Initialize();
if (!ret == NVAPI_OK){
NvAPI_ShortString string;
@ -549,7 +549,7 @@ int wrap_nvapi_init()
return -1;
}
for (int g = 0; g < num_processors; g++) {
for (int g = 0; g < num_gpus; g++) {
cudaDeviceProp props;
if (cudaGetDeviceProperties(&props, g) == cudaSuccess) {
device_bus_ids[g] = props.pciBusID;
@ -561,7 +561,7 @@ int wrap_nvapi_init()
NvAPI_ShortString name;
ret = NvAPI_GPU_GetFullName(phys[i], name);
if (ret == NVAPI_OK) {
for (int g = 0; g < num_processors; g++) {
for (int g = 0; g < num_gpus; g++) {
NvU32 busId;
ret = NvAPI_GPU_GetBusId(phys[i], &busId);
if (ret == NVAPI_OK && busId == device_bus_ids[g]) {