From 7ffebd2e741342a256448694cf6ab6878b8b72d0 Mon Sep 17 00:00:00 2001
From: Thierry <thierry.gautier@inrialpes.fr>
Date: Mon, 13 Nov 2017 16:51:06 +0100
Subject: [PATCH] [fix] threshold for dynamic hashtable
---
runtime/src/kmp_taskdeps.cpp | 8 ++++----
1 file changed, 4 insertions(+), 4 deletions(-)
diff --git a/runtime/src/kmp_taskdeps.cpp b/runtime/src/kmp_taskdeps.cpp
index 3045c60..a6ad799 100644
--- a/runtime/src/kmp_taskdeps.cpp
+++ b/runtime/src/kmp_taskdeps.cpp
@@ -93,7 +93,7 @@ static inline kmp_int32 __kmp_dephash_hash(kmp_intptr_t addr, size_t hsize) {
kmp_intptr_t v = 0;
v ^= (addr >> 32);
v ^= (addr >> 16);
- v ^= (addr >> 6); /* 8 in Kaapi */
+ v ^= (addr >> 8); /* 8 in Kaapi */
v ^= (addr >> 2); /* better that 8 */
return ((uint32_t) v) & (KMP_DEPHASH_SIZE(hsize)-1);
#endif
@@ -156,9 +156,9 @@ static void __kmp_dephash_resize(kmp_info_t *thread,
size_t old_size = h->size;
#if (LIBOMP_USE_DYNHASH==0)
- size_t h_size = old_size*2;
+ size_t h_size = old_size*4;
#else
- size_t h_size = old_size+1; /* #bits for the size */
+ size_t h_size = old_size+2; /* #bits for the size */
#endif
size_t size = KMP_DEPHASH_SIZE(h_size) * sizeof(kmp_dephash_bucket_t);
@@ -732,7 +732,7 @@ static bool __kmp_check_deps(kmp_int32 gtid, kmp_depnode_t *node,
#if LIBOMP_USE_PARALLEL_SPAWN
__kmp_acquire_lock(&thread->th.th_team->t.t_single_lock, gtid);
#endif
- while (hash->nconflicts && ((double)hash->nconflicts >= (0.1*hash->nelements)))
+ while (hash->nconflicts && ((double)hash->nconflicts >= (0.05*hash->nelements)))
{
{
#if 0
--
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