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Pin thread_filler to its NUMA node #6

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Pin thread_filler to its NUMA node #6

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0fec5db
pin thread filler to numa node
lorenzhs Jul 31, 2018
5173471
Pin execution threads to NUMA node as well
lorenzhs Jul 31, 2018
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6 changes: 6 additions & 0 deletions pmbw.cc
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Original file line number Diff line number Diff line change
Expand Up @@ -527,6 +527,8 @@ void* thread_master(void* cookie)
int node_num = thread_num % g_numa_nodes;
int node_offset = thread_num / g_numa_nodes;
int threads_per_node_ceil = (g_nthreads + g_numa_nodes - 1) / g_numa_nodes;
// pin to numa node
numa_run_on_node(node_num);

const std::vector<int>& cpuset = g_numa_cpuset[node_num];
pin_self_to_core(cpuset[node_offset % cpuset.size()]);
Expand Down Expand Up @@ -709,6 +711,8 @@ void* thread_worker(void* cookie)
// set NUMA node for task and preferred allocation
int node_num = thread_num % g_numa_nodes;
int node_offset = thread_num / g_numa_nodes;
// pin to numa node
numa_run_on_node(node_num);

const std::vector<int>& cpuset = g_numa_cpuset[node_num];
pin_self_to_core(cpuset[node_offset % cpuset.size()]);
Expand Down Expand Up @@ -803,6 +807,8 @@ void* thread_filler(void* cookie)
int node_num = *((int*)cookie);
delete (int*)cookie;

numa_run_on_node(node_num);

double ts1 = timestamp();
memset(g_memarea[node_num], 1, g_memsize_node);
double ts2 = timestamp();
Expand Down