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support arm core > 128 #7857

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Merged
zhupengyang merged 1 commit into from
Dec 9, 2021
Merged

support arm core > 128 #7857

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6 changes: 3 additions & 3 deletions lite/core/device_info.cc
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Original file line number Diff line number Diff line change
Expand Up @@ -101,11 +101,11 @@ const int DEFAULT_L3_CACHE_SIZE = 0;
int get_cpu_num() {
#ifdef LITE_WITH_LINUX
// get cpu count from /sys/devices/system/cpu/cpunum/uevent
int max_cpu_num = 128;
int cpu_num = 0;
for (int i = 0; i < max_cpu_num; ++i) {
while (true) {
char path[256];
snprintf(path, sizeof(path), "/sys/devices/system/cpu/cpu%d/uevent", i);
snprintf(
path, sizeof(path), "/sys/devices/system/cpu/cpu%d/uevent", cpu_num);
FILE* fp = fopen(path, "rb");
if (!fp) {
break;
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