[OMPI users] latest Intel CPU bug

2018-01-03 Thread Noam Bernstein
Out of curiosity, have any of the OpenMPI developers tested (or care to speculate) how strongly affected OpenMPI based codes (just the MPI part, obviously) will be by the proposed Intel CPU memory-mapping-related kernel patches that are all the rage? https://arstechnica.com/gadgets/201

Re: [OMPI users] latest Intel CPU bug

2018-01-03 Thread r...@open-mpi.org
Well, it appears from that article that the primary impact comes from accessing kernel services. With an OS-bypass network, that shouldn’t happen all that frequently, and so I would naively expect the impact to be at the lower end of the reported scale for those environments. TCP-based systems,

Re: [OMPI users] [OMPI USERS] Cross-compiling

2018-01-03 Thread Pavel Shamis
Alberto, Have you tried the toolchain from linaro ? https://releases.linaro.org/components/toolchain/binaries/latest/aarch64-linux-gnu/ Best, Pasha On Tue, Nov 14, 2017 at 4:07 AM, Alberto Ortiz wrote: > Hi, > I am trying to run in this type of environment: > > 1- A linux PC in which I intend