Compilers¶
GNU compilers are available in your path when you login. Newer GNU compilers are available as module environments.
| Compiler | Version | executable name | AVX2 support |
|---|---|---|---|
| GNU C | 8.2.0* | gcc | Yes |
| GNU C++ | 8.2.0* | g++ | Yes |
| GNU Fortran | 8.2.0* | gfortran | Yes |
| ---- | ---- | ---- | ---- |
| GNU C | 4.8.5 | gcc | No |
| GNU C++ | 4.8.5 | g++ | No |
| GNU Fortran | 4.8.5 | gfortran | No |
See the man pages man
- GCC 8.2.0 is available through the Lmod Application Environment. See below.
- Currently, HTC cluster does not support distributed parallel MPI jobs. Only shared memory parallel jobs are supported.
Instruction sets¶
The Haswell CPUs support AVX2 instructions. The GCC 8.2.0 compiler support AVX2 with the -march=core-avx2 flag. The login nodes have the same architecture as the compute nodes.