В Tue, 6 Aug 2024 10:19:25 -0400 Rob Steele via R-devel <r-devel@r-project.org> пишет:
> Would it make sense to add a parameter somewhere, to mclapply(), say, > telling R to not use multiprocessing libraries? It would be great if we had a way to limit all kinds of multiprocessing (child processes, OpenMP threads, pthreads, forks, MPI, PVM, 'parallel' clusters, <insert many more methods here>) in a single setting, but there is currently no such setting, and it may be impossible to implement. Particularly problematic may be nested parallellism: sometimes desirable (e.g. 4-machine cluster, each machine in it using OpenMP threads), sometimes undesired (e.g. your case). A single setting is probably far from enough. > Does R even know whether a linked library is doing multi-processing? Unfortunately, no, there is no standard interface for that. Best I can recommend is to link your R installation with FlexiBLAS and then use the 'flexiblas' CRAN package to talk to it. > Does R build its own BLAS and LAPACK if its also linking external > ones? I think it doesn't. -- Best regards, Ivan ______________________________________________ R-devel@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-devel
