|
From: | Peter Cawley |
Subject: | Re: GLPK compiled with -march=native produces different results |
Date: | Fri, 17 Jul 2020 17:04:12 +0100 |
Hello !
Doing tests with GLPK I noticed that if I compile it with "-march=native
-g -O2" on a computer with an "i7" processor the solution for several
files change, the objective function result remain the same but other
values varies from model to model.
Example dist.mod:
====
6 rlim[w96] NU 3 0 3 -11283.2 #
only -O2
====
6 rlim[w96] NU 3 0 3 -11283.1 #
-O2 -march=native
====
Example mfasp.mod:
====
1 r[1,2] 9 1 # only -O2
2 r[2,3] 2 1
====
1 r[1,2] 1 1 # -O2 -march=native
2 r[2,3] 10 1
====
Cheers !
[Prev in Thread] | Current Thread | [Next in Thread] |