On 22/01/2019 4:43 am, Nicolas Pavillon wrote:
Hi,
Thanks for the pointer, that indeed does the trick, and compilation
works perfectly in both cases (w/o cctools or with cctools+Xcode). I had
tried to select as through compiler flags, but I guess this did not
affect what gfortran was calling.
However, this then does not solve the underlying issue, For what I
understand, the llvm70 variant of cctools is made the default to ensure
reproducibility in some builds, but this also comes at a serious cost in
terms of compiler optimization with such older tools, isn’t it?
The MacPorts provided as, from cctools, is *supposed* to be the same as
that provided by Xcode 10. Actually, one thing you have not said is what
macOS version are you using ?
Chris
Cheers,
Nicolas
On Jan 22, 2019, at 11:23, Chris Jones <[email protected]
<mailto:[email protected]>> wrote:
Hi,
Could you then please try either removing the cctools package, or
reinstall it with the xcode variant. Either should result in the build
using the xcode provided as instead.
Chris
On 21 Jan 2019, at 3:54 pm, Nicolas Pavillon <[email protected]
<mailto:[email protected]>> wrote:
Hi,
I just tried that, and I think I have been using the current default:
NicolasMacBook:~ nicos$ port installed cctools
The following ports are currently installed:
cctools @921_0+llvm70 (active)
The reason I have been mentioning how old as might be is that the one
provided by cctools returns version 1.38, which quite behind compared
to the version provided by binutils, for example.
/opt/local/bin/as -v
Apple Inc version cctools-921, GNU assembler version 1.38
Cheers,
Nicolas
On Jan 22, 2019, at 0:23, Chris Jones <[email protected]
<mailto:[email protected]>> wrote:
Hi,
What exactly version (and variants) of cctools do you have installed ?
Perhaps try force removing it, then reinstall, to make sure you are
using the current default variants.
Chris
On 21 Jan 2019, at 2:47 pm, Nicolas Pavillon <[email protected]
<mailto:[email protected]>> wrote:
Hi,
I stumbled on some issues with the fortran compiler that I cannot
really understand. They might be linked with other topics discussed
recently about cctools, but it still seems somewhat different.
This happens with the port OpenBLAS, where the compilation fails
when flags to compile AVX instructions yield errors during
compilation, as described in the following tickets:
https://trac.macports.org/ticket/57912
https://github.com/xianyi/OpenBLAS/issues/1951
However, when I tried even more basic flags such as -march=native,
compilation also fails with errors such as
/var/folders/x8/q7j02h4d661_p7cjh42_jh380000gn/T//ccqkNy6A.s:103:no
such instruction: `vxorps %xmm0, %xmm0,%xmm0'
I then tried with another gfortran compiler outside of macports,
and it could compile without any issue if I remove macports’ prefix
from the path, which seems to indicate that the issue is coming
from the assembler in macports.
My best guess is that as in cctools is too old, but I am not sure
about that. Also, if it is correct, I wonder how this could be
solved. Any ideas?
Cheers,
Nicolas
