COSMA-build.md

@@ -3,15 +3,22 @@
 ### Cosma 8
 
 ```
-module load intel_comp/2024.2.0 compiler-rt tbb compiler mpi
-module load ucx/1.13.0rc2
-module load parallel_hdf5/1.14.4
+module load intel_comp/2024.2.0 compiler-rt tbb compiler
+module load openmpi/5.0.3
 module load fftw/3.3.10
-module load parmetis
-module load gsl/2.5
-module load sundials/5.1.0_c8_single 
-module load Healpix/3.82
+module load gsl
+module load parametis
+module load parallel_hdf5/1.14.4
+module load sundials/5.8.0_c8_single
+```
+
+The thread pinning for MPI is achieved by setting:
+
 ```
+mpirun --map-by socket:PE=32 -np MY_NUMBER_OF_MPI_RANKS swift_mpi --my-fancy-swift-options
+```
+
+(for 4 ranks per node with 32 threads each)
 
 ### Cosma 7