mvapich2: extended the fabrics variant description (#19860)

The point of this variant is to give the end user an option to use system
installed fabrics such as mofed instead of upstream fabrics such as rdma-core.
This was found to avoid run time errors on some systems.

Co-authored-by: nithintsk <nithintsk@github.com>
This commit is contained in:
Nithin Senthil Kumar 2020-11-19 07:47:57 -05:00 committed by GitHub
parent 14a9359395
commit 5129d84304
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@ -13,7 +13,7 @@ class Mvapich2(AutotoolsPackage):
networks (InfiniBand, Omni-Path, Ethernet/iWARP, and RoCE) and computing
platforms (x86 (Intel and AMD), ARM and OpenPOWER)"""
homepage = "http://mvapich.cse.ohio-state.edu/"
homepage = "http://mvapich.cse.ohio-state.edu/userguide/userguide_spack/"
url = "http://mvapich.cse.ohio-state.edu/download/mvapich/mv2/mvapich2-2.3.4.tar.gz"
list_url = "http://mvapich.cse.ohio-state.edu/downloads/"
@ -83,7 +83,12 @@ class Mvapich2(AutotoolsPackage):
variant(
'fabrics',
description='The fabric enabled for this build',
description='Select the fabric to be enabled for this build.'
'If you have verbs (either from OFED or MOFED), PSM or PSM2 '
'installed on the system already, you may need to setup external '
'packages in the package.yaml file for rdma-core, psm or opa-psm2. '
'This is recommended to avoid unexpected runtime failures. For '
'more info, visit the homepage url.',
default='mrail',
values=(
'psm', 'psm2', 'sock', 'nemesisib', 'nemesis', 'mrail',