problems getting OpenMP 4.0 to run in eclipse (Linux Mint)

0
votes

The error message in eclipse:
[my program]: /usr/lib/x86_64-linux-gnu/libgomp.so.1: version `GOMP_4.0' not found (required by [my program])

From other posts I read that a newer version of gcc is required to enable OpenMP 4.0 support (yes, I really need it) so I downloaded and built gcc 6.1 on my Linux Mint machine. gcc --version now spits out 6.1. After the installation, the warning message at "#pragma omp simd" disappeared, so I assume the installation was successful. But as soon as I insert "#pragma omp parallel for" into my code I get the error message. The code is correct, it runs in Visual Studio (withoutthe simd pragma).
Do I need to install something else?
Is there something else I did wrong?

(If someone knows an easy way to use OpenMP 4.0 on the Windows platform, this would be nice, too (preferably with Visual Studio))

1
eclipsegccopenmp

1 Answers

1
votes

OpenMP 4.0 is fully supported since GCC 4.9.1 as shown in the following link. So you may not need to build your own GCC.

http://openmp.org/wp/openmp-compilers/

On the other hand, if you build your own GCC, you should try not use the system default version of OpenMP library libgomp.so as indicated by the error message. You could use the linking option -L/path/to/new/libgomp and -lgomp to specify the location of the new library.

According to the above link, MSVC++ supports OpenMP 2.0 only until version 2015.