useful commands
spack install
spack install <package_name>@1.0.0
@ 代表安装的版本
spack list
show available packages.
spack versionsshow available versions
编译参数
The spec syntax also includes compiler flags. Spack accepts cppflags, cflags, cxxflags, fflags, ldflags, and ldlibs parameters.
spack install zlib@1.2.8 cppflags=-O3
指定特定的编译器 %
spack install zlib %clang