<div dir="auto">Blaise,</div><div dir="auto"><br></div><div dir="auto">This is 3.4.1 and CH4?</div><div dir="auto"><br></div><div dir="auto">With —enable-fast=all, asserts are disabled; can you see if it will compile and execute mpi binaries when built without that option? I suspect it will catch the invalid condition (with the non-elided assert), and would likewise crash if it was used in actual distributed (non-localhost) execution.</div><div dir="auto"><br></div><div dir="auto">Let me know; if it doesn’t crash for you I would love to figure out why.</div><div dir="auto"><br></div><div dir="auto"> - Eric</div><div><br><div class="gmail_quote"><div dir="ltr" class="gmail_attr">On Thu, Feb 18, 2021 at 3:59 PM Blaise A Bourdin via discuss <<a href="mailto:discuss@mpich.org">discuss@mpich.org</a>> wrote:<br></div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left-width:1px;border-left-style:solid;padding-left:1ex;border-left-color:rgb(204,204,204)">



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Hi,
<div>Absolutely no issues here when using gcc10 from homebrew both on intel and ARM.
<div>Here is my configuration options:</div>
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<div style="margin:0px;font-stretch:normal;line-height:normal;font-family:"Fira Code"">
<span style="font-variant-ligatures:no-common-ligatures;font-family:"Fira Code"">./configure --prefix=$MPICH_HOME        \</span></div>
<div style="margin:0px;font-stretch:normal;line-height:normal;font-family:"Fira Code"">
<span style="font-variant-ligatures:no-common-ligatures;font-family:"Fira Code"">            --enable-fast=all,O3        \</span></div>
<div style="margin:0px;font-stretch:normal;line-height:normal;font-family:"Fira Code"">
<span style="font-variant-ligatures:no-common-ligatures;font-family:"Fira Code"">            --enable-g=dbg              \</span></div>
<div style="margin:0px;font-stretch:normal;line-height:normal;font-family:"Fira Code"">
<span style="font-variant-ligatures:no-common-ligatures;font-family:"Fira Code"">            --enable-romio              \</span></div>
<div style="margin:0px;font-stretch:normal;line-height:normal;font-family:"Fira Code"">
<span style="font-variant-ligatures:no-common-ligatures;font-family:"Fira Code"">            --enable-shared             \</span></div>
<div style="margin:0px;font-stretch:normal;line-height:normal;font-family:"Fira Code"">
<span style="font-variant-ligatures:no-common-ligatures;font-family:"Fira Code"">            --enable-sharedlibs=gcc-osx \</span></div>
<div style="margin:0px;font-stretch:normal;line-height:normal;font-family:"Fira Code"">
<span style="font-variant-ligatures:no-common-ligatures;font-family:"Fira Code"">            --with-pm=hydra             \</span></div>
<div style="margin:0px;font-stretch:normal;line-height:normal;font-family:"Fira Code"">
<span style="font-variant-ligatures:no-common-ligatures;font-family:"Fira Code"">            CC=gcc-10 CXX=g++-10 FC=gfortran-10 F77=gfortran-10 \</span></div>
<div style="margin:0px;font-stretch:normal;line-height:normal;font-family:"Fira Code"">
<span style="font-variant-ligatures:no-common-ligatures;font-family:"Fira Code"">            CFLAGS="-fgnu89-inline -Wno-deprecated" \</span></div>
<div style="margin:0px;font-stretch:normal;line-height:normal;font-family:"Fira Code"">
<span style="font-variant-ligatures:no-common-ligatures;font-family:"Fira Code"">            CXXFLAGS="-Wno-deprecated" \</span></div>
<div style="margin:0px;font-stretch:normal;line-height:normal;font-family:"Fira Code"">
<span style="font-variant-ligatures:no-common-ligatures;font-family:"Fira Code"">            FFLAGS="-fallow-argument-mismatch</span>"</div>
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<div><span style="font-variant-ligatures:no-common-ligatures">Blaise</span></div></div></div></div><div style="word-wrap:break-word;line-break:after-white-space"><div><div>
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<div>On Feb 18, 2021, at 3:53 PM, Allen Sanderson via discuss <<a href="mailto:discuss@mpich.org" target="_blank">discuss@mpich.org</a>> wrote:</div>
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Hello,
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<div>First post to the discussion board. I made the mistake of upgrading to macOS 11.2 (aka Big Sur). I was able to build MPICH 3.4.1 successfully and integrate it with an application. However, when I ran, MPICH crashed. Here is the initial output:</div>
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<span style="font-variant-ligatures:no-common-ligatures;font-family:Monaco">Abort(1) on node 0: Internal error</span></div>
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<span style="font-variant-ligatures:no-common-ligatures;font-family:Monaco">0   libpmpi.12.dylib                    0x00000001068c2159 MPL_backtrace_show + 57</span></div>
<div style="margin:0px;font-stretch:normal;font-size:11px;line-height:normal;font-family:Monaco;background-color:rgb(201,185,109)">
<span style="font-variant-ligatures:no-common-ligatures;font-family:Monaco">1   libpmpi.12.dylib                    0x000000010684e874 MPIR_Assert_fail + 36</span></div>
<div style="margin:0px;font-stretch:normal;font-size:11px;line-height:normal;font-family:Monaco;background-color:rgb(201,185,109)">
<span style="font-variant-ligatures:no-common-ligatures;font-family:Monaco">2   libpmpi.12.dylib                    0x0000000106897bc8 MPIDI_OFI_mpi_init_hook + 4472</span></div>
<div style="margin:0px;font-stretch:normal;font-size:11px;line-height:normal;font-family:Monaco;background-color:rgb(201,185,109)">
<span style="font-variant-ligatures:no-common-ligatures;font-family:Monaco">3   libpmpi.12.dylib                    0x00000001068790d3 MPID_Init + 3091</span></div>
<div style="margin:0px;font-stretch:normal;font-size:11px;line-height:normal;font-family:Monaco;background-color:rgb(201,185,109)">
<span style="font-variant-ligatures:no-common-ligatures;font-family:Monaco">4   libpmpi.12.dylib                    0x00000001066ae70b MPIR_Init_thread + 219</span></div>
<div style="margin:0px;font-stretch:normal;font-size:11px;line-height:normal;font-family:Monaco;background-color:rgb(201,185,109)">
<span style="font-variant-ligatures:no-common-ligatures;font-family:Monaco">5   libmpi.12.dylib                     0x00000001064bb897 MPI_Init + 279</span></div>
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I have not yet dug into the issue any further. Before doing so I wanted to first check to see if others have successfully built and run via macOS 11.2. If so I would appreciate any pointers. If it is known that it will not yet work, that would be good information
 as well so not to spend anytime digging.
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<div>I should note that on another machine, I was wiser and upgraded to macOS 10.5.7 (aka Catalina) and built and ran with 3.3.1 that worked fine running in parallel.</div>
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<div><span>Cheers,</span><br>
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<div style="margin:0px;font-family:Helvetica">Allen</div>
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