Linux x86-64

Red Hat Enterprise/CentOS Linux 6 and 7

Red Hat Fedora 28, 29, and 30

Ubuntu 16.04 and 18.04

SuSE Linux Enterprise Server 12 and 15

Intel Parallel Studio XE 15-18
GNU 4.3 - 9.1
PGI Workstation 11.2 - 18.10
Oracle Studio 12

C and C++:
Clang 3 - 7

Fortran:
Absoft Pro 17 - 19

Argonne MPICH
Argonne MPICH2
GNU SLURM
HPE MPI 2
HPE MPT
Intel MPI
Open MPI
OSU MVAPICH
OSU MVAPICH2
Bullx MPI
IBM Platform MPI
Berkeley UPC (32-bit only)

Linux PowerLE / OpenPOWER

Ubuntu 14.04 - 16.04

Red Hat Enterprise Linux 7

GNU 4.3 - 9.1

Open MPI

Linux-arm64

Ubuntu 16.04

CentOS 7

GNU 4.3 - 9.1

Arm Compiler 19.0

C and C++:
Clang 3 - 7

Open MPI

Apple Macintosh

Mac OS X Sierra (10.12)
Mac OS X High Sierra (10.13)
Mac OS X Mojave (10.14)

Intel Parallel Studio XE 15-18
GNU 4.3 - 9.1

C/C++:
Apple Clang 4.1 - 6.0

Fortran:
Absoft Pro 17 - 19

Argonne MPICH
Argonne MPICH2
Open MPI