can you replace cpuid.c in the main directory , and run config.guess for us
it should output model,family,etc
dont try and configure mpir with this though
thanks
Jason
penryn/core2 differences are very minor at the moment , just lshift,gmp-mparam
On Thursday 16 April 2009 12:30:42 Jeff Gilchrist wrote:
> On Thu, Apr 16, 2009 at 6:51 AM, Jason Moxham <[email protected]>
wrote:
> > Could you run config.guess from gmp-4.3.0
>
> It is reporting:
> core2-unknown-linux-gnu
>
> So when I force config to use --build=core2-pc-linux-gnu I get much
> better results (as expected):
>
> Intel Xeon E5405 @ 2.0GHz (Family 6, Model 23, Stepping 6)
> Linux 64bit, gcc version 4.1.2
> 83338 bits (25088 digits)
> Library Time1 Time2
> ---------- --------- ---------
> GMP 4.3.0 2m34.857s 2m34.835s
> MPIR 1.1.0 2m58.627s 2m58.706s (--build=core2)
> MPIR 1.0.0 3m00.482s 3m00.461s (--build=core2)
> MPIR 1.0.0 3m17.198s 3m17.288s (default)
> GMP 4.2.4 5m38.156s 5m38.173s
> MPIR 1.1.0 5m45.308s 5m45.236s (default)
>
> Would using penryn-unknown-linux-gnu as Jason suggested actually make
> a difference in the code selection compared to core2?
>
> Jeff.
>
>
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// this should return the microarchitecture , NOT which code path we think is best
#if CONFIG_GUESS
// use's the stringinzing directive #x so MODELSTR(teddy) expands to modelstr="teddy"
#define CPUIS(x) modelstr=#x
#define __gmpn_cpuid cpuid
#endif
#if INFAT
#define CPUIS(x) do{TRACE(printf(" "#x"\n"));CPUSETUP_##x;}while(0)
#endif
char vendor_string[13];
char features[12];
long fms;
int family, model, stepping;
char *modelstr;
__gmpn_cpuid (vendor_string, 0);
vendor_string[12] = 0;
fms = __gmpn_cpuid (features, 1);
family = ((fms >> 8) & 15) + ((fms >> 20) & 0xff);
model = ((fms >> 4) & 15) + ((fms >> 12) & 0xf0);
stepping = fms & 15;
#if CONFIG_GUESS_64BIT
modelstr = "x86_64";
#else
modelstr = "i486";// shouldn't we make this x86??
#endif
printf("\n\nmodel is %d\nfamily is %d\nstepping is %d\n\n",model,family,stepping);
if (strcmp (vendor_string, "GenuineIntel") == 0)
{
switch (family)
{
#if CONFIG_GUESS_32BIT || FAT32
case 5:
if (model <= 2) CPUIS(pentium);
if (model >= 4) CPUIS(pentiummmx);
break;
#endif
case 6:
#if CONFIG_GUESS_32BIT || FAT32
if (model == 1) { CPUIS(pentiumpro);break;}
if (model <= 6) { CPUIS(pentium2);break;}
if (model <= 13){ CPUIS(pentium3);break;}
if (model == 14){ CPUIS(core);break;}
#endif
if (model == 15){ CPUIS(core2);break;}
if (model == 22){ CPUIS(core2);break;}
if (model == 23){ CPUIS(penryn);break;}
if (model == 26){ CPUIS(nehalem);break;}
if (model == 28){ CPUIS(atom);break;}
if (model == 29){ CPUIS(penryn);break;}
break;
case 15:
#if CONFIG_GUESS_64BIT || FAT64
__gmpn_cpuid(features,0x80000001);
if ( features[8]&1 ){ CPUIS(netburstlahf);break;}
CPUIS(netburst);
#endif
#if CONFIG_GUESS_32BIT || FAT32
if (model <= 6) { CPUIS(pentium4);break;}
int feat = ((int *)features)[2];
if (feat & 1) { CPUIS(prescott);break;}
#endif
break;
}
}
else if (strcmp (vendor_string, "AuthenticAMD") == 0)
{
switch (family)
{
#if CONFIG_GUESS_32BIT || FAT32
case 5:
if (model <= 3) { CPUIS(k5);break;}
if (model <= 7) { CPUIS(k6);break;}
if (model <= 8) { CPUIS(k62);break;}
if (model <= 9) { CPUIS(k63);break;}
break;
case 6:
CPUIS(k7);
break;
#endif
case 15:
CPUIS(k8);
break;
case 16:
if (model == 2) { CPUIS(k10);break;} // phenom
if (model == 4) { CPUIS(k10);break;} //phenom II
break;
}
}
#if CONFIG_GUESS_32 || FAT32
else if (strcmp (vendor_string, "CyrixInstead") == 0)
{
/* Should recognize Cyrix' processors too. */
}
else if (strcmp (vendor_string, "CentaurHauls") == 0)
{
switch (family)
{
case 6:
if (model < 9) { CPUIS(viac3);break;}
CPUIS(viac32);break;
}
}
#endif
