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Hi Pratik,</div>
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<br>
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Could you clarify what do you ment by "utilizing OFI"? Are you looking for libfabric calls such as
<code>fi_writemsg</code>?</div>
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<br>
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-- <br>
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Hui<br>
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<div id="divRplyFwdMsg" dir="ltr"><font face="Calibri, sans-serif" style="font-size:11pt" color="#000000"><b>From:</b> Pratik Shelar via discuss <discuss@mpich.org><br>
<b>Sent:</b> Friday, August 11, 2023 1:32 PM<br>
<b>To:</b> discuss@mpich.org <discuss@mpich.org><br>
<b>Cc:</b> Pratik Shelar <pshelar@cdac.in><br>
<b>Subject:</b> [mpich-discuss] Installing mpich with libfabric</font>
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<div class="x_default-style">Hi Everyone, <br>
specifically aiming to enable RMA (Remote Memory Access) calls for efficient parallel computing. However, I've encountered some challenges in achieving the desired setup.
<br>
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:
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<strong>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</strong>
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<strong>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</strong>
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<strong></strong></div>
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</strong></div>
<div class="x_default-style"><strong>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</strong>
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</strong></div>
<div class="x_default-style"><strong>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</strong>
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<div class="x_default-style">Despite these attempts, the RMA calls from OFI are not being utilized as indicated by my analysis with Valgrind.
<br>
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.
<br>
Thank you for your time and support. I am looking forward to your valuable insights and suggestions to help me overcome this issue.
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<pre><br><br>Thanks & Regards,<br>Pratik Baban Shelar<br>Project Engineer<br>HPC-Technologies<br>CDAC-PUNE</pre>
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