Error with "brew install openblas" in macOS

[Sim]

I am trying to install openblas on a macOS HighSierra 10.13.6 with the following command

brew install openblas

Unfortunately, I get this error...

brew install openblas

Updating Homebrew...

==> Auto-updated Homebrew!

Updated 1 tap (homebrew/cask).

==> Updated Casks

Updated 1 cask.

Warning: You are using macOS 10.13.

We (and Apple) do not provide support for this old version.

You will encounter build failures with some formulae.

Please create pull requests instead of asking for help on Homebrew's GitHub,

Twitter or any other official channels. You are responsible for resolving

any issues you experience while you are running this

old version.

==> Downloading https://github.com/xianyi/OpenBLAS/archive/v0.3.17.tar.gz

Already downloaded: /Users/JohnRambo/Library/Caches/Homebrew/downloads/54106543af17b56e0603879978f1cc3f09459952d7a716fa5168ae43bef77a4e--OpenBLAS-0.3.17.tar.gz

==> make CC=gcc-11 FC=gfortran libs netlib shared

Last 15 lines from /Users/JohnRambo/Library/Logs/Homebrew/openblas/01.make:

                             ^

<stdin>:618:27: error: unexpected token in argument list

        vfmadd231ps     (%r12,%rsi,4){1to16}, %zmm2, %zmm1

                                     ^

<stdin>:623:23: error: unexpected token in argument list

        vmovups (%rcx), %zmm2{%k1}{z}

                             ^

<stdin>:624:2: error: instruction requires: AVX-512 ISA

        vfmadd132ps     %zmm0, %zmm2, %zmm1

        ^

<stdin>:625:23: error: unexpected token in argument list

        vmovups %zmm1, (%rcx){%k1}

                             ^

make[1]: *** [sgemv_n_SKYLAKEX.o] Error 1

make: *** [libs] Error 1

Do not report this issue to Homebrew/brew or Homebrew/core!

Error: You are using macOS 10.13.

We (and Apple) do not provide support for this old version.

You will encounter build failures with some formulae.

Please create pull requests instead of asking for help on Homebrew's GitHub,

Twitter or any other official channels. You are responsible for resolving

any issues you experience while you are running this

old version.

What can I do to fix this error?

[martin-frbg]

Looks like the assembler available in your OSX installation does not understand AVX512 instructions, or your cpu was not autodetected correctly. Try building with either NO_AVX512=1 or TARGET=HASWELL. (Strange message as it does appear to realize that it needs AVX512, and the build system should automatically add -march=skylake-avx512 to the compile flags if it detected

an AVX512-capable cpu)

[Sim]

Thanks a lot for your message! Btw, I updated macOS to Big Sur, Version 11.5.2 and I was able to install OpenBLAS.. All the best

[Benny Istanto]

Hi, I am also experiencing same problem and same error, can't install openblas via homebrew on my macOS 10.13.6. The problem I couldn't upgrade to latest macOS version as my MBP is 2011 version and the latest is 10.13.6 High Sierra.

Dear martin-frbg, may I know how to do your procedure? As I am not familiar with that.

[martin-frbg]

I am not really familiar with homebrew - maybe it works if you add the extra arguments to the environment of the "brew" command, that is call "NO_AVX512=1 brew install openblas" instead of just "brew install openblas".

(If that does not work, you would probably have to find the homebrew "formula" (command file) openblas.rb on your system and edit it to add that option to the line "make CC=gcc FC=gfortran libs netlib shared" somewhere in that file.)

[Sim]

Dear Benny, at least, are you able to update to macOS 10.14 (Mojave) or macOS 10.15 (Catalina)? I guess it can solve the issue with openBLAS

[Benny Istanto]

Dear martin-frbg,

Thank you for the suggestion, it's worked. I edited file /usr/local/Homebrew/Library/Taps/homebrew/homebrew-core/Formula/openblas.rb and added "NO_AVX512=1" in line 43 to 

system "make", "CC=#{ENV.cc}", "FC=gfortran", "libs", "netlib", "shared", "NO_AVX512=1"

Then reinstalling openblas.

Dear Sim, unfortunately my Mac is 2011 version, and the latest OS supported is 10.13.6. I know its possible to upgrade to Mojave using patch, but I don't prefer to use it.