thelilfrog/cpufetch
1
0
Fork 0
mirror of https://github.com/Dr-Noob/cpufetch.git synced 2026-03-25 16:00:39 +01:00
Code Issues Packages Projects Releases Wiki Activity

[v0.98][PPC] Update ppc peak performance taking into account slices in POWER9

Browse Source
This commit is contained in:
Dr-Noob
2021-08-05 15:47:18 +02:00
parent 921e815470
commit ee57646f9e
3 changed files with 17 additions and 0 deletions
Download Patch File Download Diff File Expand all files Collapse all files

8
src/ppc/ppc.c
View File

@@ -215,6 +215,14 @@ char* get_str_peak_performance(struct cpuInfo* cpu, struct topology* topo, int64
double flops = topo->physical_cores * topo->sockets * (freq*1000000);
if(feat->altivec) flops = flops*4;
// POWER9 has the concept called "slices". Each SMT4 core has two super-slices,
// and each super-slice is capable of doing two FLOPS per cycle. In the case of
// SMT8, it has 4 super-slices, thus four FLOPS per cycle.
if(is_power9(cpu->arch)) {
int threads_per_core = topo->logical_cores / topo->physical_cores;
flops = flops * (threads_per_core / 2);
}
if(flops >= (double)1000000000000.0)
snprintf(string,size,"%.2f TFLOP/s",flops/1000000000000);
else if(flops >= 1000000000.0)