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Revert PGI changes.

tags/v0.3.25^2
Chip-Kerchner 2 years ago
parent
a922a07e61
commit
10210748de
1 changed files with 234 additions and 76 deletions
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  1. +234
    -76
      driver/others/dynamic_power.c

+ 234
- 76
driver/others/dynamic_power.c View File

@@ -13,27 +13,181 @@ extern gotoblas_t gotoblas_POWER10;
extern void openblas_warning(int verbose, const char *msg);

static char *corename[] = {
"unknown",
"POWER6",
"POWER8",
"POWER9",
"POWER10"
"unknown",
"POWER6",
"POWER8",
"POWER9",
"POWER10"
};

#define NUM_CORETYPES 5

char *gotoblas_corename(void) {
if (gotoblas == &gotoblas_POWER6) return corename[1];
if (gotoblas == &gotoblas_POWER8) return corename[2];
#ifndef C_PGI
if (gotoblas == &gotoblas_POWER6) return corename[1];
#endif
if (gotoblas == &gotoblas_POWER8) return corename[2];
#if (!defined __GNUC__) || ( __GNUC__ >= 6)
if (gotoblas == &gotoblas_POWER9) return corename[3];
if (gotoblas == &gotoblas_POWER9) return corename[3];
#endif
#ifdef HAVE_P10_SUPPORT
if (gotoblas == &gotoblas_POWER10) return corename[4];
if (gotoblas == &gotoblas_POWER10) return corename[4];
#endif
return corename[0];
}

#if defined(__clang__)
static int __builtin_cpu_supports(char* arg)
{
return 0;
}
#endif

#if defined(C_PGI) || defined(__clang__)
/*
* NV HPC compilers do not yet implement __builtin_cpu_is().
* Fake a version here for use in the CPU detection code below.
*
* Strategy here is to first check the CPU to see what it actually is,
* and then test the input to see if what the CPU actually is matches
* what was requested.
*/

#include <string.h>

/*
* Define POWER processor version table.
*
* NOTE NV HPC SDK compilers only support POWER8 and POWER9 at this time
*/

#define CPU_UNKNOWN 0
#define CPU_POWER5 5
#define CPU_POWER6 6
#define CPU_POWER8 8
#define CPU_POWER9 9
#define CPU_POWER10 10

static struct {
uint32_t pvr_mask;
uint32_t pvr_value;
const char* cpu_name;
uint32_t cpu_type;
} pvrPOWER [] = {

{ /* POWER6 in P5+ mode; 2.04-compliant processor */
.pvr_mask = 0xffffffff,
.pvr_value = 0x0f000001,
.cpu_name = "POWER5+",
.cpu_type = CPU_POWER5,
},

{ /* Power6 aka POWER6X*/
.pvr_mask = 0xffff0000,
.pvr_value = 0x003e0000,
.cpu_name = "POWER6 (raw)",
.cpu_type = CPU_POWER6,
},

{ /* Power7 */
.pvr_mask = 0xffff0000,
.pvr_value = 0x003f0000,
.cpu_name = "POWER7 (raw)",
.cpu_type = CPU_POWER6,
},

{ /* Power7+ */
.pvr_mask = 0xffff0000,
.pvr_value = 0x004A0000,
.cpu_name = "POWER7+ (raw)",
.cpu_type = CPU_POWER6,
},

{ /* Power8E */
.pvr_mask = 0xffff0000,
.pvr_value = 0x004b0000,
.cpu_name = "POWER8E (raw)",
.cpu_type = CPU_POWER8,
},

{ /* Power8NVL */
.pvr_mask = 0xffff0000,
.pvr_value = 0x004c0000,
.cpu_name = "POWER8NVL (raw)",
.cpu_type = CPU_POWER8,
},

{ /* Power8 */
.pvr_mask = 0xffff0000,
.pvr_value = 0x004d0000,
.cpu_name = "POWER8 (raw)",
.cpu_type = CPU_POWER8,
},

{ /* Power9 DD2.0 */
.pvr_mask = 0xffffefff,
.pvr_value = 0x004e0200,
.cpu_name = "POWER9 (raw)",
.cpu_type = CPU_POWER9,
},

{ /* Power9 DD 2.1 */
.pvr_mask = 0xffffefff,
.pvr_value = 0x004e0201,
.cpu_name = "POWER9 (raw)",
.cpu_type = CPU_POWER9,
},

{ /* Power9 DD2.2 or later */
.pvr_mask = 0xffff0000,
.pvr_value = 0x004e0000,
.cpu_name = "POWER9 (raw)",
.cpu_type = CPU_POWER9,
},

{ /* Power10 */
.pvr_mask = 0xffff0000,
.pvr_value = 0x00800000,
.cpu_name = "POWER10 (raw)",
.cpu_type = CPU_POWER10,
},

{ /* End of table, pvr_mask and pvr_value must be zero */
.pvr_mask = 0x0,
.pvr_value = 0x0,
.cpu_name = "Unknown",
.cpu_type = CPU_UNKNOWN,
},
};

static int __builtin_cpu_is(const char *cpu) {
int i;
uint32_t pvr;
uint32_t cpu_type;

asm("mfpvr %0" : "=r"(pvr));

for (i = 0 ; i < sizeof pvrPOWER / sizeof *pvrPOWER ; ++i) {
if ((pvr & pvrPOWER[i].pvr_mask) == pvrPOWER[i].pvr_value) {
break;
}
}

#if defined(DEBUG)
printf("%s: returning CPU=%s, cpu_type=%p\n", __func__,
pvrPOWER[i].cpu_name, pvrPOWER[i].cpu_type);
#endif
return corename[0];
cpu_type = pvrPOWER[i].cpu_type;

if (!strcmp(cpu, "power8"))
return cpu_type == CPU_POWER8;
if (!strcmp(cpu, "power9"))
return cpu_type == CPU_POWER9;
return 0;
}

#endif /* C_PGI */

#ifdef _AIX
#include <sys/systemcfg.h>

@@ -90,98 +244,102 @@ static int __builtin_cpu_supports(char* arg)

static gotoblas_t *get_coretype(void) {

if (__builtin_cpu_supports("power6"))
return &gotoblas_POWER6;
if (__builtin_cpu_supports("power8"))
return &gotoblas_POWER8;
#ifndef C_PGI
if (__builtin_cpu_is("power6") || __builtin_cpu_is("power6x"))
return &gotoblas_POWER6;
#endif
if (__builtin_cpu_is("power8"))
return &gotoblas_POWER8;
#if (!defined __GNUC__) || ( __GNUC__ >= 6)
if (__builtin_cpu_supports("power9"))
return &gotoblas_POWER9;
if (__builtin_cpu_is("power9"))
return &gotoblas_POWER9;
#endif
#ifdef HAVE_P10_SUPPORT
#ifdef _AIX
if (__builtin_cpu_supports("power10"))
if (__builtin_cpu_supports("power10"))
#else
if (__builtin_cpu_supports("arch_3_1") && __builtin_cpu_supports("mma"))
#endif
return &gotoblas_POWER10;
if (__builtin_cpu_supports ("arch_3_1") && __builtin_cpu_supports ("mma"))
#endif
/* Fall back to the POWER9 implementation if the toolchain is too old or the MMA feature is not set */
#if (!defined __GNUC__) || ( __GNUC__ < 11) || (__GNUC__ == 10 && __GNUC_MINOR__ < 2)
if (__builtin_cpu_supports("power10"))
return &gotoblas_POWER9;
return &gotoblas_POWER10;
#endif
return NULL;
/* Fall back to the POWER9 implementation if the toolchain is too old or the MMA feature is not set */
#if (!defined __GNUC__) || ( __GNUC__ >= 11) || (__GNUC__ == 10 && __GNUC_MINOR__ >= 2)
if (__builtin_cpu_is("power10"))
return &gotoblas_POWER9;
#endif
return NULL;
}

static gotoblas_t *force_coretype(char * coretype) {

int i ;
int found = -1;
char message[128];

for ( i = 0 ; i < NUM_CORETYPES; i++)
{
if (!strncasecmp(coretype, corename[i], 20))
{
found = i;
break;
}
}
int i ;
int found = -1;
char message[128];

switch (found)
{
case 1: return (&gotoblas_POWER6);
case 2: return (&gotoblas_POWER8);
for ( i = 0 ; i < NUM_CORETYPES; i++)
{
if (!strncasecmp(coretype, corename[i], 20))
{
found = i;
break;
}
}

switch (found)
{
#ifndef C_PGI
case 1: return (&gotoblas_POWER6);
#endif
case 2: return (&gotoblas_POWER8);
#if (!defined __GNUC__) || ( __GNUC__ >= 6)
case 3: return (&gotoblas_POWER9);
case 3: return (&gotoblas_POWER9);
#endif
#ifdef HAVE_P10_SUPPORT
case 4: return (&gotoblas_POWER10);
case 4: return (&gotoblas_POWER10);
#endif
default: return NULL;
}
snprintf(message, 128, "Core not found: %s\n", coretype);
openblas_warning(1, message);
default: return NULL;
}
snprintf(message, 128, "Core not found: %s\n", coretype);
openblas_warning(1, message);
}

void gotoblas_dynamic_init(void) {

char coremsg[128];
char coren[22];
char *p;
char coremsg[128];
char coren[22];
char *p;


if (gotoblas) return;
if (gotoblas) return;

p = getenv("OPENBLAS_CORETYPE");
if ( p )
{
gotoblas = force_coretype(p);
}
else
{
gotoblas = get_coretype();
}
p = getenv("OPENBLAS_CORETYPE");
if ( p )
{
gotoblas = force_coretype(p);
}
else
{
gotoblas = get_coretype();
}

if (gotoblas == NULL)
{
snprintf(coremsg, 128, "Falling back to POWER8 core\n");
openblas_warning(1, coremsg);
gotoblas = &gotoblas_POWER8;
}
if (gotoblas == NULL)
{
snprintf(coremsg, 128, "Falling back to POWER8 core\n");
openblas_warning(1, coremsg);
gotoblas = &gotoblas_POWER8;
}

if (gotoblas && gotoblas -> init) {
strncpy(coren,gotoblas_corename(),20);
sprintf(coremsg, "Core: %s\n",coren);
openblas_warning(2, coremsg);
gotoblas -> init();
} else {
openblas_warning(0, "OpenBLAS : Architecture Initialization failed. No initialization function found.\n");
exit(1);
}
if (gotoblas && gotoblas -> init) {
strncpy(coren,gotoblas_corename(),20);
sprintf(coremsg, "Core: %s\n",coren);
openblas_warning(2, coremsg);
gotoblas -> init();
} else {
openblas_warning(0, "OpenBLAS : Architecture Initialization failed. No initialization function found.\n");
exit(1);
}
}

void gotoblas_dynamic_quit(void) {
gotoblas = NULL;
gotoblas = NULL;
}

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