[Pvfs2-developers] Multiple endpoints when using PVFS2 from MPICH2

[Scott Atchley]

Hi all,

The noncontig test allowed me to use PVFS2 within MPICH2-MX for the  
first time. In this scenario, a single process opens two MX  
endpoints, one for MPICH2 and one for PVFS2. It is common that a user  
MPI job will run a process per core, which means that MX will need to  
provide 2*number of cores endpoints. By default, MX provides 8  
endpoints and the system administrator can increase that to 16 when  
loading MX.

Do other BMI methods open two endpoints per process or does PVFS2  
have a means to share the endpoint from MPICH2?

Thanks,

Scott