#1083 Unable to compile on iMac Pro (Intel Xeon W-2140B)

[Demitri]

Hi,

I'm unable to compile ATLAS on an iMac Pro. I've successfully compiled 3.10 previously on an older iMac. After setting up a build directory:

mkdir BUILD export SRCdir=`pwd` export BLDdir="${SRCdir}/BUILD" cd BUILD ../configure --prefix=/usr/local/atlas-3.11.41 --with-netlib-lapack-tarfile=/usr/local/src/lapack-3.8.0.tar.gz --force-clang=/usr/bin/clang

this is the output:
```
/usr/bin/clang -I//usr/local/src/ATLAS/BUILD/..//CONFIG/include -g -w -c //usr/local/src/ATLAS/BUILD/..//CONFIG/src/atlconf_misc.c
/usr/bin/clang -I//usr/local/src/ATLAS/BUILD/..//CONFIG/include -g -w -o xconfig //usr/local/src/ATLAS/BUILD/..//CONFIG/src/config.c atlconf_misc.o
./xconfig -d s //usr/local/src/ATLAS/BUILD/../ -d b //usr/local/src/ATLAS/BUILD -Si lapackref 1 -C ac /usr/bin/clang -C gc /usr/bin/clang

OS configured as OSX (12)

Assembly configured as GAS_x8664 (2)
```

The script then hangs there indefinitely (I've left it for well over an hour). During this time, "xprobe_avxmac" takes up 100% of the CPU.

If I hit ^C the configuration continues, but fails pretty quickly after entering make. The full output of this is attached.

Is this a problem with the specific processor? Has anyone else compiled ATLAS on an iMac Pro? I've tried both v3.10.3 and v3.11.41.

Cheers,
Demitri

[Demitri]

A quick update here. I'm starting the build now with a few options preselected to avoid the probe:

../configure --prefix=/usr/local/atlas-3.10.3 --with-netlib-lapack-tarfile=/usr/local/src/lapack-3.8.0.tar.gz --force-clang=/usr/bin/clang -A Corei464 -O OSX -b 64 -V 960

The -V 960 selects AVX, SSE1, SSE2, SSE3.

This gets me to a point where I can call make. This builds for a few seconds, then fails. One of the errors is this:

clang: error: unsupported option '-V -Wno-framework-include-private-from-public'
clang: error: no input files

I think this is due to a typo in line (6) in Make.top, where I think the -V should be lowercase.

- $(KC) -V 2>&1 >> bin/INSTALL_LOG/ERROR.LOG

This is part of building the error report; the error itself seems to be here:

ar r /usr/local/src/ATLAS-3.11.41/BUILD/lib/libatlas.a ATL_xerbla.o
ar: creating archive /usr/local/src/ATLAS-3.11.41/BUILD/lib/libatlas.a
ranlib ATL_xerbla.o
error: /Applications/Xcode-beta.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/ranlib: file: ATL_xerbla.o is not an archive
make[3]: *** [xerbla.grd] Error 1
make[2]: *** [IStage1] Error 2
ERROR 613 DURING FPU PROBE!!.

I am attaching the error report. Thanks for any help.