Set up a git repoHEADmaster

1 files changed, 50 insertions, 0 deletions

diff --git a/tests/performance/04_spmv3.sy b/tests/performance/04_spmv3.sy
new file mode 100644
index 0000000..2fddb8f
--- /dev/null
+++ b/tests/performance/04_spmv3.sy
@@ -0,0 +1,50 @@
+void spmv(int n,int xptr[], int yidx[], int vals[], int b[], int x[]){
+    int i, j, k;
+    i = 0;
+    while (i < n){
+        x[i] = 0;
+        i = i + 1;
+    }
+
+    i = 0;
+    while (i < n){
+        j = xptr[i];
+        while (j < xptr[i + 1]){
+            x[yidx[j]] = x[yidx[j]] + vals[j];
+            j = j + 1;
+        }
+
+        j = xptr[i];
+        while (j < xptr[i + 1]){
+            x[yidx[j]] = x[yidx[j]] + vals[j] * (b[i] - 1);
+            j = j + 1;
+        }
+        i = i + 1;
+    }
+}
+
+const int N = 100010;
+const int M = 3000000;
+
+int x[N], y[M], v[M];
+int a[N], b[N], c[N];
+
+int main(){
+    int n = getarray(x) - 1;
+    int m = getarray(y);
+    getarray(v);
+
+    getarray(a);
+
+    starttime();
+
+    int i = 0;
+    while (i < 100){
+        spmv(n, x, y, v, a, b);
+        spmv(n, x, y, v, b, a);
+        i=i+1;
+    }
+    stoptime();
+    putarray(n, b);
+    return 0;
+}