Clean up canonical mt benchmarks and reorganize extra versions in /mt. All versions support support at least 1/2/4 threads.

1 files changed, 61 insertions, 0 deletions

diff --git a/mt/ck_matmul.c b/mt/ck_matmul.c
new file mode 100755
index 0000000..753a36d
--- /dev/null
+++ b/mt/ck_matmul.c
@@ -0,0 +1,61 @@
+#include "stdlib.h"
+
+#include "util.h"
+
+#include "dataset.h"
+void __attribute__((noinline)) matmul(const int coreid, const int ncores, const int lda,  const data_t A[], const data_t B[], data_t C[] )
+{
+   
+   // ***************************** //
+   // **** ADD YOUR CODE HERE ***** //
+   // ***************************** //
+   //
+   // feel free to make a separate function for MI and MSI versions.
+  int i, j, k, ii, jj, bsize, start;
+  bsize = 16;
+  start = bsize*coreid;
+  for ( jj = start; jj < lda; jj += bsize*ncores) {
+    int first = 1;
+    for ( ii = start; ii !=start || first; ii=(bsize+ii) % lda) {
+      first = 0;
+      for ( j = jj; j < lda && j < jj + bsize; j+=4) {
+	for ( i = ii; i < lda && i < ii + bsize; i+=2) {
+	  data_t c1 = C[i + j*lda];
+	  data_t c2 = C[i + j*lda + 1];
+	  data_t c3 = C[i + (j+1)*lda];
+	  data_t c4 = C[i + (j+1)*lda + 1];
+	  data_t c5 = C[i + (j+2)*lda];
+	  data_t c6 = C[i + (j+2)*lda + 1];
+	  data_t c7 = C[i + (j+3)*lda];
+	  data_t c8 = C[i + (j+3)*lda + 1];
+	  for ( k = 0; k < lda; k+=8){
+	    for (int x = 0; x < 8; x++) {
+	    data_t a = A[j*lda + k+x];
+	    data_t a1 = A[(j+1)*lda +k+x];
+	    data_t a2 = A[(j+2)*lda +k+x];
+	    data_t a3 = A[(j+3)*lda +k+x];
+	    data_t b1 = B[(k+x)*lda + i];
+	    data_t b2 = B[(k+x)*lda + i + 1];
+	    c1 += a * b1;
+	    c2 += a * b2;
+	    c3 += a1* b1;
+	    c4 += a1* b2;
+	    c5 += a2* b1;
+	    c6 += a2* b2;
+	    c7 += a3* b1;
+	    c8 += a3* b2;
+	    }
+	  }
+	  C[i + j*lda] = c1;
+	  C[i + j*lda + 1] = c2;
+	  C[i + (j+1)*lda] = c3;
+	  C[i + (j+1)*lda + 1] = c4;
+	  C[i + (j+2)*lda] = c5;
+	  C[i + (j+2)*lda + 1] = c6;
+	  C[i + (j+3)*lda] = c7;
+	  C[i + (j+3)*lda + 1] = c8;
+	}
+      }
+   }
+  }
+}