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2012年 7月 8日 (日) 22:39:04 JST
#28955: parallelization misstake in BFGS
Open Date: 2012-07-08 22:39
Last Update: 2012-07-08 22:39
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http://sourceforge.jp/ticket/browse.php?group_id=6231&tid=28955
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Last Changes/Comment for this Ticket:
2012-07-08 22:39 Update by: mikiya_fujii
* New Ticket "parallelization misstake in BFGS" created
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Ticket Status:
Reporter: mikiya_fujii
Owner: ktns
Type: バグ
Status: オープン
Priority: 5 - 中
MileStone: ver0.2
Component: (未割り当て)
Severity: 5 - 中
Resolution: なし
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Ticket details:
PK at l. 357 in BFGS.cpp should be reductive variable.
cf.
{{{
$ svn diff optimization/BFGS.cpp
Index: optimization/BFGS.cpp
===================================================================
--- optimization/BFGS.cpp (revision 871)
+++ optimization/BFGS.cpp (working copy)
@@ -352,7 +352,7 @@
P[i] = - (vectorForce[i] - vectorOldForce[i]);
}
double PK = 0; // P_k^T K_k at second term at RHS of Eq. (13) in [SJTO_1983]
-#pragma omp parallel for schedule(auto)
+#pragma omp parallel for schedule(auto) reduction(+:PK)
for(int i=0; i<dimension;i++){
PK += P[i] * K[i];
}
}}}
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