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where the compiler might be gcc, icc, ifort or something else.

To this we may add options such as:

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This is where things get a bit complicated as Deneb is a heterogeneous cluster with two different CPU architectures.

 For the IvyBridge part, as already seen:

-xCORE-AVX-I


For the Haswell part 

-xCORE-AVX2

Which means "May generate Intel(R) Advanced Vector Extensions 2 (Intel(R) AVX2), Intel(R) AVX, SSE4.2, SSE4.1, SSE3, SSE2, SSE, and SSSE3 instructions for Intel(R) processors."

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On Deneb, if you wish to run your jobs on a specific architecture, then please, pass the following option to the batch system


For IvyBridge  IvyBridge 

#SBATCH --constraint=E5v2

For Haswell

#SBATCH --constraint=E5v3

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Fidis, like Deneb, is a heterogeneous cluster with two different CPU architectures.


For the Broadwell part (--constraint=E5v4):

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Which is the same as for the Haswell processor


For the Skylake nodes (--constraint=s6g1):

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