From 7d126836fc35d96bda349723caae16d04981374f Mon Sep 17 00:00:00 2001
From: Daniel Maier <daniel.maier@tu-berlin.de>
Date: Wed, 26 Sep 2018 16:24:52 +0200
Subject: [PATCH] hotspot: error checking
---
codes/correlation/correlation.c | 19 +++++++++++++++++++
1 file changed, 19 insertions(+)
diff --git a/codes/correlation/correlation.c b/codes/correlation/correlation.c
index 6e81435..20f38d1 100644
--- a/codes/correlation/correlation.c
+++ b/codes/correlation/correlation.c
@@ -38,6 +38,22 @@ void init_array (int m,
}
+static
+void calc_error(int m,
+ DATA_TYPE POLYBENCH_2D(corr,M,M,m,m))
+
+{
+ int i, j;
+ double error = 0;
+
+ for (i = 0; i < m; i++)
+ for (j = 0; j < m; j++) {
+ error += (corr[i][j] - 1.0)*(corr[i][j] - 1.0);
+ }
+ error /= m*m;
+ error = sqrtf(error);
+ printf("error: %f\n", error);
+}
/* DCE code. Must scan the entire live-out data.
Can be used also to check the correctness of the output. */
@@ -158,6 +174,9 @@ int main(int argc, char** argv)
by the function call in argument. */
polybench_prevent_dce(print_array(m, POLYBENCH_ARRAY(corr)));
+ /* calculate error */
+ calc_error(m, POLYBENCH_ARRAY(corr));
+
/* Be clean. */
POLYBENCH_FREE_ARRAY(data);
POLYBENCH_FREE_ARRAY(corr);
--
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