CalculateProcessorTopology tries to figure out system topology by
parsing /proc/cpuinfo to determine the number of threads, cores, and
NUMA nodes. There are some architectures where the "physical id" begins
with 1 rather than 0, which was creating and empty "0" node and causing a
crash in CreateThreadPool.
Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=97102
Reviewed-By: George Kyriazis <george.kyriazis@intel.com>
CC: <mesa-stable@lists.freedesktop.org>
(cherry picked from commit
b829206b0739925501bcc68233437d6d03b79795)
out_numThreadsPerProcGroup++;
}
+ /* Prune empty numa nodes */
+ for (auto it = out_nodes.begin(); it != out_nodes.end(); ) {
+ if ((*it).cores.size() == 0)
+ it = out_nodes.erase(it);
+ else
+ ++it;
+ }
+
+ /* Prune empty core nodes */
for (uint32_t node = 0; node < out_nodes.size(); node++) {
auto& numaNode = out_nodes[node];
auto it = numaNode.cores.begin();