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Fix some hyperthreading errors. #5295

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Merged
merged 1 commit into from
Jun 25, 2025
Merged

Fix some hyperthreading errors. #5295

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12 changes: 12 additions & 0 deletions driver/others/init.c
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Original file line number Diff line number Diff line change
Expand Up @@ -391,7 +391,15 @@ static void numa_mapping(void) {
core = 0;
for (cpu = 0; cpu < common -> num_procs; cpu ++) {
bitmask_idx = CPUELT(cpu);
/*
* When common->avail[i] = 0x5555555555555555UL (indicating that adjacent logical cores share a physical core),
* using it as a mask may overlap with the local_cpu_map function's role, leading to only half of the real physical cores being detected.
*/
#ifdef ARCH_LOONGARCH64
if (common -> node_info[node][bitmask_idx]) {
#else
if (common -> node_info[node][bitmask_idx] & common -> avail[bitmask_idx] & CPUMASK(cpu)) {
#endif
common -> cpu_info[count] = WRITE_CORE(core) | WRITE_NODE(node) | WRITE_CPU(cpu);
count ++;
core ++;
Expand Down Expand Up @@ -930,8 +938,12 @@ void gotoblas_affinity_init(void) {

if (common -> num_nodes > 1) numa_mapping();

#ifdef ARCH_LOONGARCH64
common -> final_num_procs = common -> num_procs;
#else
common -> final_num_procs = 0;
for(i = 0; i < common -> avail_count; i++) common -> final_num_procs += rcount(common -> avail[i]) + 1; //Make the max cpu number.
#endif

for (cpu = 0; cpu < common -> final_num_procs; cpu ++) common -> cpu_use[cpu] = 0;

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