36 lines
974 B
Julia
36 lines
974 B
Julia
function cpuinfo_physicalcores()
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maxcore = -1
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for line in eachline("/proc/cpuinfo")
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if startswith(line, "core id")
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maxcore = max(maxcore, parse(Int, split(line, ':')[2]))
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end
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end
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maxcore < 0 && error("failure to read core ids from /proc/cpuinfo")
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return maxcore + 1
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end
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function set_parallel_mthread(N::Int, workers::Bool)
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if N > cpuinfo_physicalcores()
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warn("Number of specified cores exceeds the physical core count. Performance may suffer.")
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end
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if workers
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addprocs(N)
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info("Using $N cpus in @parallel code.")
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end
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info("Using $(Threads.nthreads()) threads in @threads code.")
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BLAS.set_num_threads(N)
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info("Using $N threads in BLAS.")
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end
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function set_parallel_mthread(parsed_args::Dict; workers=false)
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if parsed_args["cpus"] == nothing
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N = cpuinfo_physicalcores()
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else
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N = parsed_args["cpus"]
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end
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set_parallel_mthread(N, workers)
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end
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