GEMV: Add NUMA variant for HBM evaluation

1 files changed, 86 insertions, 2 deletions

diff --git a/GEMV/baselines/cpu/gemv_openmp.c b/GEMV/baselines/cpu/gemv_openmp.c
index df70be3..3af84e5 100644
--- a/GEMV/baselines/cpu/gemv_openmp.c
+++ b/GEMV/baselines/cpu/gemv_openmp.c
@@ -1,22 +1,100 @@
 #include <stdlib.h>
 #include <stdio.h>
 #include "../../support/timer.h"
+
+#if NUMA
+#include <numaif.h>
+#include <numa.h>
+
+struct bitmask* bitmask_in;
+struct bitmask* bitmask_out;
+
+void* mp_pages[1];
+int mp_status[1];
+int mp_nodes[1];
+int numa_node_in = -1;
+int numa_node_out = -1;
+int numa_node_cpu = -1;
+#endif
+
 #include "gemv_utils.h"
 
 int main(int argc, char *argv[])
 {
+    (void) argc;
     const size_t rows = 20480;
     const size_t cols = 8192;
 
     double **A, *b, *x;
 
+#if NUMA
+    bitmask_in    = numa_parse_nodestring(argv[1]);
+    bitmask_out   = numa_parse_nodestring(argv[2]);
+    numa_node_cpu = atoi(argv[3]);
+#endif
+
+#if NUMA
+    if (bitmask_out) {
+        numa_set_membind(bitmask_out);
+        numa_free_nodemask(bitmask_out);
+    }
+    b = (double*) numa_alloc(sizeof(double)*rows);
+#else
     b = (double*) malloc(sizeof(double)*rows);
+#endif
+
+#if NUMA
+    if (bitmask_in) {
+        numa_set_membind(bitmask_in);
+        // no free yet, re-used in allocate_dense
+    }
+    x = (double*) numa_alloc(sizeof(double)*cols);
+#else
     x = (double*) malloc(sizeof(double)*cols);
+#endif
 
     allocate_dense(rows, cols, &A);
 
     make_hilbert_mat(rows,cols, &A);
 
+#if NUMA
+    struct bitmask *bitmask_all = numa_allocate_nodemask();
+    numa_bitmask_setall(bitmask_all);
+    numa_set_membind(bitmask_all);
+    numa_free_nodemask(bitmask_all);
+#endif
+
+#if NUMA
+    mp_pages[0] = A;
+    if (move_pages(0, 1, mp_pages, NULL, mp_status, 0) == -1) {
+        perror("move_pages(A)");
+    }
+    else if (mp_status[0] < 0) {
+        printf("move_pages(A) error: %d", mp_status[0]);
+    }
+    else {
+        numa_node_in = mp_status[0];
+    }
+
+    mp_pages[0] = b;
+    if (move_pages(0, 1, mp_pages, NULL, mp_status, 0) == -1) {
+        perror("move_pages(b)");
+    }
+    else if (mp_status[0] < 0) {
+        printf("move_pages(b) error: %d", mp_status[0]);
+    }
+    else {
+        numa_node_out = mp_status[0];
+    }
+
+    if (numa_node_cpu != -1) {
+        if (numa_run_on_node(numa_node_cpu) == -1) {
+            perror("numa_run_on_node");
+            numa_node_cpu = -1;
+        }
+    }
+#endif
+
     Timer timer;
     for (int i = 0; i < 100; i++) {
 
@@ -41,9 +119,15 @@ int main(int argc, char *argv[])
         start(&timer, 0, 0);
         gemv(A, x, rows, cols, &b);
         stop(&timer, 0);
-        printf("[::] GEMV CPU | n_threads=%d e_type=%s n_elements=%d "
-            "| throughput_MBps=%f",
+        printf("[::] GEMV CPU | n_threads=%d e_type=%s n_elements=%ld"
+#if NUMA
+            " numa_node_in=%d numa_node_out=%d numa_node_cpu=%d numa_distance_in_cpu=%d numa_distance_cpu_out=%d"
+#endif
+            " | throughput_MBps=%f",
             nr_threads, "double", rows * cols,
+#if NUMA
+            numa_node_in, numa_node_out, numa_node_cpu, numa_distance(numa_node_in, numa_node_cpu), numa_distance(numa_node_cpu, numa_node_out),
+#endif
             rows * cols * sizeof(double) / timer.time[0]);
         printf(" throughput_MOpps=%f",
             rows * cols / timer.time[0]);