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Refs #241. Add Haswell support (using sandybridge optimizations)

This commit is contained in:
Dan Luu 2013-06-29 17:26:56 -05:00 committed by Zhang Xianyi
parent 6e8501c8a1
commit 88ef307cef
3 changed files with 56 additions and 1 deletions
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4
cpuid.h
View File

@ -106,6 +106,7 @@
#define CORE_SANDYBRIDGE 20
#define CORE_BOBCAT 21
#define CORE_BULLDOZER 22
#define CORE_HASWELL CORE_SANDYBRIDGE
#define HAVE_SSE (1 << 0)
#define HAVE_SSE2 (1 << 1)
@ -196,4 +197,7 @@ typedef struct {
#define CPUTYPE_SANDYBRIDGE 44
#define CPUTYPE_BOBCAT 45
#define CPUTYPE_BULLDOZER 46
// this define is because BLAS doesn't have haswell specific optimizations yet
#define CPUTYPE_HASWELL CPUTYPE_SANDYBRIDGE
#endif

30
cpuid_x86.c
View File

@ -41,6 +41,8 @@
#include "cpuid.h"
#ifdef NO_AVX
#define CPUTYPE_HASWELL CPUTYPE_NEHALEM
#define CORE_HASWELL CORE_NEHALEM
#define CPUTYPE_SANDYBRIDGE CPUTYPE_NEHALEM
#define CORE_SANDYBRIDGE CORE_NEHALEM
#define CPUTYPE_BULLDOZER CPUTYPE_BARCELONA
@ -1050,8 +1052,22 @@ int get_cpuname(void){
return CPUTYPE_SANDYBRIDGE;
else
return CPUTYPE_NEHALEM;
case 12:
if(support_avx())
return CPUTYPE_HASWELL;
else
return CPUTYPE_NEHALEM;
}
break;
case 4:
switch (model) {
case 5:
if(support_avx())
return CPUTYPE_HASWELL;
else
return CPUTYPE_NEHALEM;
}
break;
}
break;
case 0x7:
@ -1424,8 +1440,22 @@ int get_coretype(void){
return CORE_SANDYBRIDGE;
else
return CORE_NEHALEM; //OS doesn't support AVX
case 12:
if(support_avx())
return CORE_HASWELL;
else
return CORE_NEHALEM;
}
break;
case 4:
switch (model) {
case 5:
if(support_avx())
return CORE_HASWELL;
else
return CORE_NEHALEM;
}
break;
}
break;

23
driver/others/dynamic.c
View File

@ -69,7 +69,8 @@ extern gotoblas_t gotoblas_BULLDOZER;
#define gotoblas_SANDYBRIDGE gotoblas_NEHALEM
#define gotoblas_BULLDOZER gotoblas_BARCELONA
#endif
//Use sandy bridge kernels for haswell.
#define gotoblas_HASWELL gotoblas_SANDYBRIDGE
#define VENDOR_INTEL 1
#define VENDOR_AMD 2
@ -190,6 +191,26 @@ static gotoblas_t *get_coretype(void){
return &gotoblas_NEHALEM; //OS doesn't support AVX. Use old kernels.
}
}
//Intel Haswell
if (model == 12) {
if(support_avx())
return &gotoblas_HASWELL;
else{
fprintf(stderr, "OpenBLAS : Your OS does not support AVX instructions. OpenBLAS is using Nehalem kernels as a fallback, which may give poorer performance.\n");
return &gotoblas_NEHALEM; //OS doesn't support AVX. Use old kernels.
}
}
return NULL;
case 4:
//Intel Haswell
if (model == 5) {
if(support_avx())
return &gotoblas_HASWELL;
else{
fprintf(stderr, "OpenBLAS : Your OS does not support AVX instructions. OpenBLAS is using Nehalem kernels as a fallback, which may give poorer performance.\n");
return &gotoblas_NEHALEM; //OS doesn't support AVX. Use old kernels.
}
}
return NULL;
}
case 0xf: