[Trilinos-Users] Compiling with GCC 4.8.0
MHeroux at csbsju.edu
Tue Apr 9 12:06:41 MDT 2013
By default OpenMP is off. This shouldn't be the issue.
Are you sure that you are using the same 4.8.0 g++/gfortran version? Just
checking the easy stuff first.
On 4/9/13 12:45 PM, "Andrey Prokopenko" <aprokop at sandia.gov> wrote:
>I have been compiling with gcc 4.8.0 for quite a while, and don't see
>such errors. But I disable OpenMP explicitly in the configure file (-D
>On Tue 09 Apr 2013 11:29:39 AM MDT, Littlewood, David John wrote:
>> Has anyone had luck building Trilinos with GCC 4.8.0?
>> I just gave it a shot on a Mac running OS X 10.7.5 and got the
>> following error:
>> In member function Œint Epetra_MultiVector::Abs(const
>> internal compiler error: in prepare_cmp_insn, at optabs.c:4190
>> for (int j=0; j < myLength; j++) to[j] = std::abs(from[j]);
>> internal compiler error: Abort trap: 6
>> g++: internal compiler error: Abort trap: 6 (program cc1plus)
>> The offending code in Epetra_MultiVector.cpp looks pretty
>> straightforward, just a simple for loop.
>> It is preceded by
>> #ifdef EPETRA_HAVE_OMP
>> #pragma omp parallel for default(none)
>> But I'm assuming that by default, EPETRA_HAVE_OMP is set to false, so
>> the omp code wouldn't have any effect.
>> I'm guessing my best course of action is to abandon GCC 4.8.0 in favor
>> of 4.7.2. I have successfully built with 4.7.2 on a different machine.
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>> Trilinos-Users at software.sandia.gov
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