[Mvapich-discuss] MVAPICH 2.3.6 HCA Support for VMXNET3 or PVRDMA VMware Network Adapters

[Subramoni, Hari]

Hi, Nicholas.

MVAPICH2 has support for running in VMs.

Could you please send us the output of ibv_devinfo -v on the VM? Do you think it is possible to get temporary remote access to debug the problem ourselves?

Best,
Hari.

From: Mvapich-discuss <mvapich-discuss-bounces at lists.osu.edu> On Behalf Of Clark, Nicholas - 1002 - MITLL via Mvapich-discuss
Sent: Tuesday, November 30, 2021 4:49 PM
To: mvapich-discuss at lists.osu.edu
Subject: [Mvapich-discuss] MVAPICH 2.3.6 HCA Support for VMXNET3 or PVRDMA VMware Network Adapters

Does MVPAICH2 have support for running in VMs with VMXNET3 or the PVRDMA network adapter that supports RoCE v1/v2?

Currently with the default build parameters and native rdma-core libraries on RHEL 8.5, I am seeing this message about unknown HCA on both VMXNET3 and PVRDMA:

[rdma_open_hca] Unknown HCA type: this build of MVAPICH2 does notfully support the HCA found on the system (try with other build options)
[cli_1]: aborting job:
Fatal error in MPI_Init:
Other MPI error, error stack:
MPIR_Init_thread(493)............:
MPID_Init(419)...................: channel initialization failed
MPIDI_CH3_Init(470)..............: rdma_get_control_parameters
rdma_get_control_parameters(1925): rdma_open_hca
rdma_open_hca(1080)..............: Failed to open HCA: No such file or directory

Sincerely,
[Description: LL]
Nicholas Clark
MIT Lincoln Laboratory
ISR and Tactical Systems Division
Embedded and Open Systems Group
Systems Administration
244 Wood St., S3-487
Lexington, MA 02421-6426
(O): 781-981-9342
nicholas.clark at ll.mit.edu<mailto:nicholas.clark at ll.mit.edu>

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