在Ubuntu上进行Fortran并行计算,你可以选择使用OpenMP或MPI。以下是使用Intel Fortran编译器(ifort)进行OpenMP并行计算的步骤:
安装Intel Parallel Studio XE:
配置环境变量:
source /opt/intel/bin/compilervars.sh intel64
编写Fortran代码:
hello_world.f90
的文件,并输入以下内容:program hello_world
use omp_lib
implicit none
integer :: num_threads, thread_id
! OMP PARALLEL PRIVATE(thread_id)
thread_id = omp_get_thread_num()
num_threads = omp_get_num_threads()
print *, "Hello from thread", thread_id, "of", num_threads
end program hello_world
编译代码:
hello_world.f90
的目录,然后运行以下命令来编译代码,并启用OpenMP支持:ifort -qopenmp hello_world.f90 -o hello_world
运行程序:
./hello_world
Hello from thread 0 of 4
Hello from thread 1 of 4
Hello from thread 2 of 4
Hello from thread 3 of 4
如果你想要使用MPI进行并行计算,可以参考以下步骤:
编写MPI Fortran程序:
mpi_hello_world.f90
的文件,并输入以下内容:program mpi_hello_world
use mpi
implicit none
integer :: rank, size, ierr
call MPI_INIT(ierr)
call MPI_COMM_RANK(MPI_COMM_WORLD, rank, ierr)
call MPI_COMM_SIZE(MPI_COMM_WORLD, size, ierr)
print *, "Hello from process", rank, "of", size
call MPI_FINALIZE(ierr)
end program mpi_hello_world
编译代码:
ifort -qopenmp -I/usr/include/mpi -lmpi -lmpi_f90 mpi_hello_world.f90 -o mpi_hello_world
运行程序:
mpirun -np 4 ./mpi_hello_world
Hello from process 0 of 4
Hello from process 1 of 4
Hello from process 2 of 4
Hello from process 3 of 4
通过以上步骤,你可以在Ubuntu上使用ifort进行Fortran并行计算。你可以根据需要编写更复杂的并行程序,并使用Intel Fortran编译器进行编译和运行。