Bob,
Thanks for this. CC’ing my friend Stephane to update the code in libpfm.
You going to be at SC? Would be good to meet.
Phil
> On Nov 6, 2015, at 2:36 PM, Bob Walkup <wal...@us.ibm.com> wrote:
>
> IBM's most recent POWER8 processor is not recognized by the __is_processor()
> macro in PAPI 5.4.1, so PAPI thinks there are no hardware counters available.
> The POWER8 processor code has changed :
>
> older POWER8 "tuleta" version : processor version register returns 0x004b
> newer POWER8 "firestone" version : processor version register returns 0x004d
>
> Please update PAPI (src/libpfm4/lib/pfmlib_power_priv.h,
> src/libpfm4/lib/pfmlib_power8.c) to include support for this "firestone"
> POWER8 variety.
>
> Regards,
> Bob Walkup (wal...@us.ibm.com, 914-945-1512)
> ---------------------------------------------------------------
>
> test code to print the processor version number :
> /* Special Purpose Registers (SPRNs)*/
> #define SPRN_PVR 0x11F /* Processor Version Register */
>
> /* Processor Version Register (PVR) field extraction */
>
> #define PVR_VER(pvr) (((pvr) >> 16) & 0xFFFF) /* Version field */
>
> int get_pvr(void)
> {
> unsigned long ret;
> asm volatile("mfspr %0,%1" : "=r" (ret): "i" (SPRN_PVR));
> return ((int) ret);
> }
>
> #include <stdio.h>
>
> int main(int argc, char * argv[])
> {
> int pvr;
> pvr = get_pvr();
> printf("processor version register returns %#6.4x\n", PVR_VER(pvr));
> return 0;
> }
> _______________________________________________
> Ptools-perfapi mailing list
> ptools-perf...@eecs.utk.edu
> http://lists.eecs.utk.edu/mailman/listinfo/ptools-perfapi
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