Support ARM64

[galomi04]

With the new Surface laptops and other machines now running Windows on ARM could you finally take the platform seriously enough to release MSMPI binaries for it? People have been asking for years.

[kenaycock]

I am finding MPI 9 installs in Windows 11 ARM, but not 10.x. Is this a known work-around? (discovered on a whim). I anticipate 9 is relying on Prism.

Of course, native will be better. Fingers crossed.

[MovGP0]

The installer fails with the following event log message on my system:

Faulting application name: msmpisetup.exe, version: 10.1.12498.16, time stamp: 0x5d817a83
Faulting module name: ntdll.dll, version: 10.0.26100.6899, time stamp: 0x1b85b0ce
Exception code: 0xc0000409
Fault offset: 0x001ba660
Faulting process id: 0x4538
Faulting application start time: 0x1DC469333A5BD73
Faulting application path: C:\Users\movgp\Downloads\msmpisetup.exe
Faulting module path: C:\Windows\SYSTEM32\ntdll.dll
Report Id: 4e208179-e8c4-4293-8e58-e4206c930085
Faulting package full name: 
Faulting package-relative application ID: 

Relevant System Info

OS Name:                       Microsoft Windows 11 Home
OS Version:                    10.0.26200 N/A Build 26200

System Manufacturer:           Microsoft Corporation
System Model:                  Microsoft Surface Laptop, 7th Edition
System Type:                   ARM64-based PC
Processor(s):                  1 Processor(s) Installed.
                               [01]: ARMv8 (64-bit) Family 8 Model 1 Revision 201 Qualcomm Technologies Inc ~2188 Mhz

Personal Notes

• This issue is currently preventing me from using Elmer FEM for physics simulations, since Elmer depends on MS-MPI.
• I personally think that Microsoft should at least support their own systems 😅

[hmartinez82]

@MovGP0 I just added arm64 build for mfem msys2/MINGW-packages#26930, it should be installable in MSYS2 soon.

And I looked at the CMake project file for Elmer FEM, it does allow building it without MPI support (that's what we do in most packages in MSYS2 when compiling for ARM64, we disable the MPI requirement)

[mediouni-m]

There's a fork with arm64 support at: https://linaro.atlassian.net/wiki/spaces/WOAR/pages/30461132804/Microsoft-MPI+and+NetworkDirect