Hi Nicola,

If possible, could you provide us with the exact CMake command you are running and the full output from CMake - it will make it much easier for us to help you diagnose the problem.

Are you running a CMake command with a series of options on the command line or you’re using the CCMake text-based GUI to set the options?

Nektar++ has a lot of optional dependencies and does a number of checks at configuration time for different system properties and the existence of a number of different libraries. Without more detailed information it’s very difficult to know exactly what is causing the problem.

I think you originally highlighted that the CMake output was showing MPI_Send as being not found - this shouldn’t actually be an issue, I believe it’s a common message. Because there are many different implementations of MPI that need to be checked for in different ways, you will sometimes see things saying that something is not found. In some cases, CMake will then make other checks for different implementations of required libraries and it may still find an installed library that it can use.

Anyway, if you can provide some further information, we can try to help identify and resolve the issue.

Many thanks,

Jeremy

On 8 Feb 2024, at 14:37, Nico Clinco <nicoclinco@gmail.com> wrote:

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Hello,

i have tried  also defining  CC=mpiCC and CCX=mpiCXX but nothing, the same problem.

I want to add that i am using the following modules:

gnu9/9.4.0

cmake/3.24.2

openmpi4

Thanks in advance,

Nicola

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