[Coin-discuss] clp performance much worse with g++4.1 vs. g++4.0
Stuart A Siegel
stus at us.ibm.com
Sat Dec 8 16:48:10 EST 2007
Can someone (or a few of you) please help me confirm something? When I
compile Clp with g++4.1.x and run bin/clp on a mps file I see rougly 3
times poorer performance than if clp is compiled with g++4.0.x. The
compiler version is the only difference (i.e., all Clp compiler
configuration flags (the defaults) and the mps file are the same of couse).
I don't seem to be able to attach the mps file, please contact me at
stus__atsymbol__us.ibm.com and I'll send it to you if you're willing the
give this a try. Thanks.
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Stuart Siegel - IBM TJ Watson Laboratory 33-238
(M) 914.396.9506 (H) 973.379.1810 (O) 914.945.1674
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