https://community.intel.com/t5/Intel-MPI-Library/Bug-Report-MPI-Comm-free-does-not-delete-attributes/m-p/1374554#M9385 <P><BR />I believe I found a bug in IntelMPI 2021.3. A call to MPI_Comm_free() does not cause the deleter function for attributes to be called if there is a non-blocking operation in progress. The MPI 3.1 standard specifies that the deleter should be called from MPI_Comm_free (Section 6.4.3, page 248, lines 26-27).</P> <P>&nbsp;</P> <P>I tested OpenMPI 4.0, MPICH 3.2, and IntelMPI 2018.4, and they all call the deleter as expected.</P> <P>&nbsp;</P> <P>I have a minimal reproducible example, but my post gets flagged as spam if I include it.&nbsp; Is there some other way to post it?</P> <P>&nbsp;</P> <P>&nbsp;</P> Tue, 05 Apr 2022 23:13:27 GMT jcrean 2022-04-05T23:13:27Z https://community.intel.com/t5/Intel-MPI-Library/Bug-Report-MPI-Comm-free-does-not-delete-attributes/m-p/1374554#M9385 <P><BR />I believe I found a bug in IntelMPI 2021.3. A call to MPI_Comm_free() does not cause the deleter function for attributes to be called if there is a non-blocking operation in progress. The MPI 3.1 standard specifies that the deleter should be called from MPI_Comm_free (Section 6.4.3, page 248, lines 26-27).</P> <P>&nbsp;</P> <P>I tested OpenMPI 4.0, MPICH 3.2, and IntelMPI 2018.4, and they all call the deleter as expected.</P> <P>&nbsp;</P> <P>I have a minimal reproducible example, but my post gets flagged as spam if I include it.&nbsp; Is there some other way to post it?</P> <P>&nbsp;</P> <P>&nbsp;</P> Tue, 05 Apr 2022 23:13:27 GMT https://community.intel.com/t5/Intel-MPI-Library/Bug-Report-MPI-Comm-free-does-not-delete-attributes/m-p/1374554#M9385 jcrean 2022-04-05T23:13:27Z https://community.intel.com/t5/Intel-MPI-Library/Bug-Report-MPI-Comm-free-does-not-delete-attributes/m-p/1374815#M9388 <P>Hi,</P><P><BR /></P><P>Thank you for posting in Intel Communities.</P><P><BR /></P><P>Since this is a duplicate thread of "<A href="https://community.intel.com/t5/Intel-oneAPI-HPC-Toolkit/Bug-Report-MPI-Comm-attribute-deleter-not-called/m-p/1373444#M9376" target="_blank">https://community.intel.com/t5/Intel-oneAPI-HPC-Toolkit/Bug-Report-MPI-Comm-attribute-deleter-not-called/m-p/1373444#M9376</A>", we will no longer monitor this thread. We will continue addressing this issue in the other thread.</P><P><BR /></P><P>Thanks &amp; Regards,</P><P>Hemanth</P><BR /> Wed, 06 Apr 2022 12:13:05 GMT https://community.intel.com/t5/Intel-MPI-Library/Bug-Report-MPI-Comm-free-does-not-delete-attributes/m-p/1374815#M9388 HemanthCH_Intel 2022-04-06T12:13:05Z