build_simulators.sh: detect number of jobs for building

Now that we default to building libgmp, it makes more sense to increase job count to number of available CPUs since there is more parallelism.
riscv · Feb 14, 2025 · 61d8c5d · 61d8c5d
1 parent 6346520
commit 61d8c5d
Showing 1 changed file with 2 additions and 1 deletion.
diff --git a/build_simulators.sh b/build_simulators.sh
@@ -3,4 +3,5 @@
 set -e
 : "${DOWNLOAD_GMP:=TRUE}"
 cmake -S . -B build -DCMAKE_BUILD_TYPE=RelWithDebInfo -DDOWNLOAD_GMP="${DOWNLOAD_GMP}"
-cmake --build build -j2
+jobs=$( (nproc || sysctl -n hw.ncpu || echo 2) 2>/dev/null)
+cmake --build build -j${jobs}