1 files changed, 43 insertions, 0 deletions
diff --git a/benchmarks/CUDA/DG/3rdParty/ParMetis-3.1/METISLib/bucketsort.c b/benchmarks/CUDA/DG/3rdParty/ParMetis-3.1/METISLib/bucketsort.c
new file mode 100644
index 0000000..14aa213
--- /dev/null
+++ b/benchmarks/CUDA/DG/3rdParty/ParMetis-3.1/METISLib/bucketsort.c
@@ -0,0 +1,43 @@
+/*
+ * Copyright 1997, Regents of the University of Minnesota
+ *
+ * bucketsort.c
+ *
+ * This file contains code that implement a variety of counting sorting
+ * algorithms
+ *
+ * Started 7/25/97
+ * George
+ *
+ * $Id: bucketsort.c,v 1.1 2003/07/16 15:55:00 karypis Exp $
+ *
+ */
+
+#include <metis.h>
+
+
+
+/*************************************************************************
+* This function uses simple counting sort to return a permutation array
+* corresponding to the sorted order. The keys are assumed to start from
+* 0 and they are positive.  This sorting is used during matching.
+**************************************************************************/
+void BucketSortKeysInc(int n, int max, idxtype *keys, idxtype *tperm, idxtype *perm)
+{
+  int i, ii;
+  idxtype *counts;
+
+  counts = idxsmalloc(max+2, 0, "BucketSortKeysInc: counts");
+
+  for (i=0; i<n; i++)
+    counts[keys[i]]++;
+  MAKECSR(i, max+1, counts);
+
+  for (ii=0; ii<n; ii++) {
+    i = tperm[ii];
+    perm[counts[keys[i]]++] = i;
+  }
+
+  free(counts);
+}
+