From mgs.rus.52 at gmail.com Wed Jan 7 08:53:01 2026 From: mgs.rus.52 at gmail.com (Alex) Date: Wed, 7 Jan 2026 13:53:01 +0000 Subject: [Mvapich-discuss] Crash in mvapich-4h.1 Message-ID: Hi, I think there is a bug in MPIDI_IPC_rndv_cts_cb (ipc_control.c). When you do rendezvous cts you use sreg->status.MPI_SOURCE as destination (later in MPIDI_IPC_remote_complete) but I'm afraid in 'sending' requests this field might not be filled properly. As the results mpi crashes if MPIR_CVAR_CH4_IPC_RNDV_PROTOCOL is set to auto (messagie_size>MPIR_CVAR_CH4_IPC_CMA_P2P_THRESHOLD) | coop | rput (with number of ranks > 2 ). I fixed it locally by propagating correct value to MPI_SOURCE: inserting sreq->status.MPI_SOURCE = MPIDIG_REQUEST(sreq, u.send.dest); before MPIDI_IPC_remote_complete(sreq, hdr->ipc_hdr.ipc_type); around ipc_control.c:139, but you can choose a more 'elegant' way to fix this. Cheers, Alex -------------- next part -------------- An HTML attachment was scrubbed... URL: From panda at cse.ohio-state.edu Sat Jan 17 17:15:34 2026 From: panda at cse.ohio-state.edu (Panda, Dhabaleswar) Date: Sat, 17 Jan 2026 22:15:34 +0000 Subject: [Mvapich-discuss] The number of MVAPICH downloads has crossed 2.0 million Message-ID: It is a great pleasure to indicate that the number of MVAPICH downloads from the MVAPICH project site has crossed 2.0 million!! The number of registered organizations using the MVAPICH libraries has also crossed 3,500 in 93 countries. In addition, the MVAPICH libraries are available through Spack, OpenHPC, Redhat, SUSE, and vendor software stacks. We would like to express sincere thanks to all users and organizations of the MVAPICH libraries for their continuous support during the last 25 years to reach this milestone. Congratulations to all current and past staff members (software engineers, research scientists, and post-docs) and students (Ph.D., M.S., and undergraduate) involved in the MVAPICH project for their dedicated hard work and contributions to make the project successful!! Thanks, The MVAPICH Team