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351f9114b0
Relevant patches lifted from the `release-1.6` branch of my Julia fork:
https://git.sr.ht/~ninjin/julia-nix/tree/release-1.6
31 lines
1.0 KiB
Diff
31 lines
1.0 KiB
Diff
From 44c2c979c4f2222567ce65f506cf47fb87482348 Mon Sep 17 00:00:00 2001
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From: Pontus Stenetorp <pontus@stenetorp.se>
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Date: Thu, 8 Apr 2021 04:37:44 +0000
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Subject: [PATCH 5/6] nix: Enable parallel unit tests for sandbox
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Disabled by default due to lack of networking in the Nix sandbox. This
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greatly speeds up the build process on a multi-core system.
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---
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test/runtests.jl | 5 +++--
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1 file changed, 3 insertions(+), 2 deletions(-)
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diff --git a/test/runtests.jl b/test/runtests.jl
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index 2f9cd058bb..2f8c19fa32 100644
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--- a/test/runtests.jl
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+++ b/test/runtests.jl
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@@ -83,8 +83,9 @@ prepend!(tests, linalg_tests)
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import LinearAlgebra
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cd(@__DIR__) do
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n = 1
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- if net_on
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- n = min(Sys.CPU_THREADS, length(tests))
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+ if net_on || haskey(ENV, "NIX_BUILD_CORES")
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+ x = haskey(ENV, "NIX_BUILD_CORES") ? parse(Int, ENV["NIX_BUILD_CORES"]) : Sys.CPU_THREADS
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+ n = min(x, Sys.CPU_THREADS, length(tests))
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n > 1 && addprocs_with_testenv(n)
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LinearAlgebra.BLAS.set_num_threads(1)
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end
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--
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2.29.3
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