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Find the gpu platform with the most devices and use that if no platform option is passed.

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This commit is contained in:
Con Kolivas 2012-07-15 13:40:11 +10:00
parent f99ac0ca78
commit ffd21f8db3
1 changed files with 8 additions and 3 deletions
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11
ocl.c
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@ -33,7 +33,7 @@
#include "findnonce.h" #include "findnonce.h"
#include "ocl.h" #include "ocl.h"
int opt_platform_id; int opt_platform_id = -1;
char *file_contents(const char *filename, int *length) char *file_contents(const char *filename, int *length)
{ {
@ -80,7 +80,7 @@ int clDevicesNum(void) {
cl_uint numPlatforms; cl_uint numPlatforms;
cl_platform_id *platforms; cl_platform_id *platforms;
cl_platform_id platform = NULL; cl_platform_id platform = NULL;
unsigned int most_devices = 0, i; unsigned int most_devices = 0, i, mdplatform;
status = clGetPlatformIDs(0, NULL, &numPlatforms); status = clGetPlatformIDs(0, NULL, &numPlatforms);
/* If this fails, assume no GPUs. */ /* If this fails, assume no GPUs. */
@ -123,8 +123,10 @@ int clDevicesNum(void) {
return -1; return -1;
} }
applog(LOG_INFO, "Platform %d devices: %d", i, numDevices); applog(LOG_INFO, "Platform %d devices: %d", i, numDevices);
if (numDevices > most_devices) if (numDevices > most_devices) {
most_devices = numDevices; most_devices = numDevices;
mdplatform = i;
}
if (numDevices) { if (numDevices) {
unsigned int j; unsigned int j;
char pbuff[256]; char pbuff[256];
@ -139,6 +141,9 @@ int clDevicesNum(void) {
} }
} }
if (opt_platform_id < 0)
opt_platform_id = mdplatform;;
return most_devices; return most_devices;
} }