libspe2 0.9a
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#include "spebase.h"
Go to the source code of this file.
Defines | |
#define | THREADS_PER_BE 2 |
Functions | |
int | _base_spe_count_physical_cpus (int cpu_node) |
int | _base_spe_count_physical_spes (int cpu_node) |
int | _base_spe_count_usable_spes (int cpu_node) |
#define THREADS_PER_BE 2 |
Definition at line 25 of file info.h.
Referenced by _base_spe_count_physical_cpus().
int _base_spe_count_physical_cpus | ( | int | cpu_node | ) |
Definition at line 30 of file info.c.
References DEBUG_PRINTF, and THREADS_PER_BE.
Referenced by _base_spe_count_physical_spes(), and _base_spe_cpu_info_get().
{ const char *buff = "/sys/devices/system/cpu"; DIR *dirp; int ret = -2; struct dirent *dptr; DEBUG_PRINTF ("spe_count_physical_cpus()\n"); // make sure, cpu_node is in the correct range if (cpu_node != -1) { errno = EINVAL; return -1; } // Count number of CPUs in /sys/devices/system/cpu if((dirp=opendir(buff))==NULL) { fprintf(stderr,"Error opening %s ",buff); perror("dirlist"); errno = EINVAL; return -1; } while((dptr=readdir(dirp))) { ret++; } closedir(dirp); return ret/THREADS_PER_BE; }
int _base_spe_count_physical_spes | ( | int | cpu_node | ) |
Definition at line 71 of file info.c.
References _base_spe_count_physical_cpus(), and DEBUG_PRINTF.
Referenced by _base_spe_count_usable_spes(), and _base_spe_cpu_info_get().
{ const char *buff = "/sys/devices/system/spu"; DIR *dirp; int ret = -2; struct dirent *dptr; int no_of_bes; DEBUG_PRINTF ("spe_count_physical_spes()\n"); // make sure, cpu_node is in the correct range no_of_bes = _base_spe_count_physical_cpus(-1); if (cpu_node < -1 || cpu_node >= no_of_bes ) { errno = EINVAL; return -1; } // Count number of SPUs in /sys/devices/system/spu if((dirp=opendir(buff))==NULL) { fprintf(stderr,"Error opening %s ",buff); perror("dirlist"); errno = EINVAL; return -1; } while((dptr=readdir(dirp))) { ret++; } closedir(dirp); if(cpu_node != -1) ret /= no_of_bes; // FIXME return ret; }
int _base_spe_count_usable_spes | ( | int | cpu_node | ) |
Definition at line 62 of file info.c.
References _base_spe_count_physical_spes().
Referenced by _base_spe_cpu_info_get().
{ return _base_spe_count_physical_spes(cpu_node); // FIXME }