Hi Everyone, specifically aiming to enable RMA (Remote Memory Access) calls for efficient parallel computing. However, I've encountered some challenges in achieving the desired setup. I have attempted multiple configurations, but it seems that the RMA calls of OFI are not being utilized based on my backtracing results. I am seeking your guidance to resolve this issue. Here are the configurations I've tried: 1. ./configure --prefix=/home/<username>/mpich/mpich_exe --with-ch4-ofi-direct-provider=<provider> --with-libfabric-lib=/home/<username>/libfabric/libfabric_exe/lib --with-libfabric-include=/home/<username>/libfabric/libfabric_exe/include 2. ./configure --prefix=/home/<username>/mpich/mpich_exe --enable-ch4-am-only --with-ch4-ofi-direct-provider=<provider> ---with-libfabric-lib=/home/<username>/libfabric/libfabric_exe/lib --with-libfabric-include=/home/<username>/libfabric/libfabric_exe/include 3. ./configure --prefix=/home/<username>/mpich/mpich_exe --enable-mpit-pvars=rma --with-ch4-ofi-direct-provider=<provider> ---with-libfabric-lib=/home/<username>/libfabric/libfabric_exe/lib --with-libfabric-include=/home/<username>/libfabric/libfabric_exe/include 4. ./configure --prefix=/home/<username>/mpich/mpich_exe --enable-mpit-pvars=rma --with-device=ch4:ofi ---with-libfabric-lib=/home/<username>/libfabric/libfabric_exe/lib --with-libfabric-include=/home/<username>/libfabric/libfabric_exe/include Despite these attempts, the RMA calls from OFI are not being utilized as indicated by my analysis with Valgrind. I kindly request your expertise and assistance in resolving this matter. If there are specific configurations or steps that I might be missing, please provide guidance on how to properly enable RMA calls using OFI in the MPICH setup. Thank you for your time and support. I am looking forward to your valuable insights and suggestions to help me overcome this issue. Thanks & Regards, Pratik Baban Shelar Project Engineer HPC-Technologies CDAC-PUNE ------------------------------------------------------------------------------------------------------------ [ C-DAC is on Social-Media too. Kindly follow us at: Facebook: https://www.facebook.com/CDACINDIA & Twitter: @cdacindia ] This e-mail is for the sole use of the intended recipient(s) and may contain confidential and privileged information. If you are not the intended recipient, please contact the sender by reply e-mail and destroy all copies and the original message. Any unauthorized review, use, disclosure, dissemination, forwarding, printing or copying of this email is strictly prohibited and appropriate legal action will be taken. ------------------------------------------------------------------------------------------------------------