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[v0.98][PPC] Add altivec detection and peak performance output

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Dr-Noob
2021-07-31 17:43:02 +02:00
parent faac972107
commit 4d1d14d2a7
6 changed files with 80 additions and 11 deletions
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44
src/ppc/ppc.c
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@@ -3,8 +3,10 @@
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
#include <assert.h>
#include "ppc.h"
#include "uarch.h"
#include "udev.h"
#include "../common/udev.h"
@@ -146,12 +148,54 @@ struct cpuInfo* get_cpu_info() {
cpu->cach = get_cache_info(cpu);
cpu->topo = get_topology_info(cpu, cpu->cach);
feat->altivec = has_altivec(cpu->arch);
if(cpu->cach == NULL || cpu->topo == NULL) {
return NULL;
}
return cpu;
}
char* get_str_altivec(struct cpuInfo* cpu) {
char* string = calloc(4, sizeof(char));
if(cpu->feat->altivec) strcpy(string, "Yes");
else strcpy(string, "No");
return string;
}
char* get_str_peak_performance(struct cpuInfo* cpu, struct topology* topo, int64_t freq) {
/*
* Not sure about this
* PP(SP) = N_CORES * FREQUENCY * 4(If altivec)
*/
//7 for GFLOP/s and 6 for digits,eg 412.14
uint32_t size = 7+6+1+1;
assert(strlen(STRING_UNKNOWN)+1 <= size);
char* string = malloc(sizeof(char)*size);
//First check we have consistent data
if(freq == UNKNOWN_FREQ) {
snprintf(string,strlen(STRING_UNKNOWN)+1,STRING_UNKNOWN);
return string;
}
struct features* feat = cpu->feat;
double flops = topo->physical_cores * topo->sockets * (freq*1000000);
if(feat->altivec) flops = flops*4;
if(flops >= (double)1000000000000.0)
snprintf(string,size,"%.2f TFLOP/s",flops/1000000000000);
else if(flops >= 1000000000.0)
snprintf(string,size,"%.2f GFLOP/s",flops/1000000000);
else
snprintf(string,size,"%.2f MFLOP/s",flops/1000000);
return string;
}
char* get_str_topology(struct cpuInfo* cpu, struct topology* topo, bool dual_socket) {
char* string;
if(topo->smt_supported > 1) {