af1e140e35
As the MMA patches for POWER10 are backported to gcc10.2, changing the minimum gcc version needed to build OpenBLAS for POWER10.
129 lines
2.6 KiB
C
129 lines
2.6 KiB
C
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#include "common.h"
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extern gotoblas_t gotoblas_POWER6;
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extern gotoblas_t gotoblas_POWER8;
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#if (!defined __GNUC__) || ( __GNUC__ >= 6)
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extern gotoblas_t gotoblas_POWER9;
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#endif
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#if (!defined __GNUC__) || ( __GNUC__ >= 11) \
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|| (__GNUC__ == 10 && __GNUC_MINOR__ >= 2)
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#define HAVE_P10_SUPPORT 1
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#endif
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#ifdef HAVE_P10_SUPPORT
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extern gotoblas_t gotoblas_POWER10;
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#endif
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extern void openblas_warning(int verbose, const char *msg);
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static char *corename[] = {
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"unknown",
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"POWER6",
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"POWER8",
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"POWER9",
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"POWER10"
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};
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#define NUM_CORETYPES 4
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char *gotoblas_corename(void) {
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if (gotoblas == &gotoblas_POWER6) return corename[1];
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if (gotoblas == &gotoblas_POWER8) return corename[2];
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#if (!defined __GNUC__) || ( __GNUC__ >= 6)
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if (gotoblas == &gotoblas_POWER9) return corename[3];
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#endif
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#ifdef HAVE_P10_SUPPORT
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if (gotoblas == &gotoblas_POWER10) return corename[4];
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#endif
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return corename[0];
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}
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static gotoblas_t *get_coretype(void) {
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if (__builtin_cpu_is("power6") || __builtin_cpu_is("power6x"))
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return &gotoblas_POWER6;
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if (__builtin_cpu_is("power8"))
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return &gotoblas_POWER8;
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#if (!defined __GNUC__) || ( __GNUC__ >= 6)
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if (__builtin_cpu_is("power9"))
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return &gotoblas_POWER9;
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#endif
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#ifdef HAVE_P10_SUPPORT
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if (__builtin_cpu_supports ("arch_3_1") && __builtin_cpu_supports ("mma"))
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return &gotoblas_POWER10;
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#endif
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return NULL;
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}
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static gotoblas_t *force_coretype(char * coretype) {
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int i ;
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int found = -1;
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char message[128];
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for ( i = 0 ; i < NUM_CORETYPES; i++)
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{
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if (!strncasecmp(coretype, corename[i], 20))
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{
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found = i;
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break;
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}
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}
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switch (found)
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{
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case 1: return (&gotoblas_POWER6);
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case 2: return (&gotoblas_POWER8);
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#if (!defined __GNUC__) || ( __GNUC__ >= 6)
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case 3: return (&gotoblas_POWER9);
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#endif
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#ifdef HAVE_P10_SUPPORT
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case 4: return (&gotoblas_POWER10);
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#endif
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default: return NULL;
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}
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snprintf(message, 128, "Core not found: %s\n", coretype);
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openblas_warning(1, message);
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}
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void gotoblas_dynamic_init(void) {
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char coremsg[128];
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char coren[22];
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char *p;
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if (gotoblas) return;
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p = getenv("OPENBLAS_CORETYPE");
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if ( p )
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{
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gotoblas = force_coretype(p);
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}
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else
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{
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gotoblas = get_coretype();
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}
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if (gotoblas == NULL)
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{
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snprintf(coremsg, 128, "Falling back to POWER8 core\n");
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openblas_warning(1, coremsg);
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gotoblas = &gotoblas_POWER8;
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}
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if (gotoblas && gotoblas -> init) {
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strncpy(coren,gotoblas_corename(),20);
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sprintf(coremsg, "Core: %s\n",coren);
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openblas_warning(2, coremsg);
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gotoblas -> init();
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} else {
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openblas_warning(0, "OpenBLAS : Architecture Initialization failed. No initialization function found.\n");
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exit(1);
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}
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}
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void gotoblas_dynamic_quit(void) {
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gotoblas = NULL;
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}
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