Hi Nicola,

We have several instructions on how to build nektar++ on different machines, see the following links
[intel compiler] https://www.nektar.info/nektar-ic-hpc/
[gnu  compiler] https://www.nektar.info/nektar-on-archer2/
[intel compiler] https://faculty.ustc.edu.cn/gaoankang/zh_CN/article/620934/content/3473.htm#article

In your case, it seems the c and c++ compilers are not properly recoganized. You can try to define CC=mpicc CXX=mpicxx before running cmake. Hope it helps.

Cheers
Ankang

-----Original Messages-----
From:"Nico Clinco" <nicoclinco@gmail.com>
Sent Time:2024-02-08 04:55:25 (Thursday)
To: nektar-users@imperial.ac.uk
Cc:
Subject: [Nektar-users] Issues with compilation

This email from nicoclinco@gmail.com originates from outside Imperial. Do not click on links and attachments unless you recognise the sender. If you trust the sender, add them to your safe senders list to disable email stamping for this address.

 

Dear All,

Recently, i tried to compile nektar++ with mpi. And i'm facing some issues with the compilation. The problem seems to be that "MPI_SEND" is not found as shown in the figure. Therefore, when i try to launch my applications on multiple nodes on an HPC cluster i have problems.

If someone can help me i will be glad.
Thank you in advance,
Nicola