Arm backend: Limit number of build jobs (pytorch#9874)

mansnils · web-flow · commit 0844c38606a4 · 2025-04-03T17:10:44.000+02:00
In certain build environments, without limiting the number of build
jobs, build may abort because memory is running low.
diff --git a/backends/arm/scripts/build_portable_kernels.sh b/backends/arm/scripts/build_portable_kernels.sh
@@ -75,7 +75,7 @@ cmake                                                 \
     -B"${et_build_dir}/examples/arm"                  \
     "${et_root_dir}/examples/arm"
 
-cmake --build "${et_build_dir}/examples/arm" --parallel --config ${build_type} --
+cmake --build "${et_build_dir}/examples/arm" -j$(nproc) --config ${build_type} --
 
 set +x
 
diff --git a/backends/arm/scripts/build_quantized_ops_aot_lib.sh b/backends/arm/scripts/build_quantized_ops_aot_lib.sh
@@ -51,4 +51,4 @@ CXXFLAGS="-fno-exceptions -fno-rtti" cmake \
     -B${et_build_dir}                         \
     .
 
-cmake --build ${et_build_dir} --parallel -- quantized_ops_aot_lib
+cmake --build ${et_build_dir} -j$(nproc) -- quantized_ops_aot_lib

Original file line number	Diff line number	Diff line change
`@@ -51,4 +51,4 @@ CXXFLAGS="-fno-exceptions -fno-rtti" cmake \`
`51`	`51`	`-B${et_build_dir} \`
`52`	`52`	`.`
`53`	`53`
`54`		`-cmake --build ${et_build_dir} --parallel -- quantized_ops_aot_lib`
	`54`	`+cmake --build ${et_build_dir} -j$(nproc) -- quantized_ops_aot_lib`