compiled msieve on PS3

[bigmic]

hi all,

i just want to announce i successfully compiled msieve on the
playstation3 (on yellow-dog linux)

using a single PPE i got a 272 bits number factored in 37 mins
(its not canned heat but its ok)

for compiling you have to fix the file dd.h (because no ppc_intrinsics.h on PS3)

starting at:

#if defined(__GNUC__) && (defined(__powerpc__) || defined(__ppc64__))

//#include <ppc_intrinsics.h>

/*
* fmsub - Floating Multiply-Subract (Double-Precision)
*
* (a * c - b) double precision
*/
static inline double __fmsub (double a, double c, double b) __attribute__((always_inline));
static inline double
__fmsub (double a, double c, double b)
{
double result;
__asm__ ("fmsub %0, %1, %2, %3"
/* outputs: */ : "=f" (result)
/* inputs: */ : "f" (a), "f" (c), "f" (b));
return result;
}

regards

[jasonp]

Originally Posted by bigmic

i just want to announce i successfully compiled msieve on the
playstation3 (on yellow-dog linux)

using a single PPE i got a 272 bits number factored in 37 mins
(its not canned heat but its ok)

Very cool. Just to be pedantic, the compiled binary would not be using the special Cell processing engines everybody is drooling over, but rather the 64-bit PowerPC core. Once in a while I think about what it would take to make sieving SIMD-friendly, but any of the ideas I get would require major code transformations to even test.

jasonp

[bigmic]

haha :-)

hey - we got the toy for 3 days now in ancient europe :-)
so first tests with the spe's are made - i also don't expect fast progress
but some stuff is already working with spe support
(coded some RC4 code running on SPE's :-)

cu