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-rw-r--r--var/spack/repos/builtin/packages/mvapich2/package.py9
1 files changed, 7 insertions, 2 deletions
diff --git a/var/spack/repos/builtin/packages/mvapich2/package.py b/var/spack/repos/builtin/packages/mvapich2/package.py
index 3031082ee7..b2c412aea7 100644
--- a/var/spack/repos/builtin/packages/mvapich2/package.py
+++ b/var/spack/repos/builtin/packages/mvapich2/package.py
@@ -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',