gfortran

来源： https://stackoverflow.com/questions/49088232/installing-lapack-on-osx

来源： https://stackoverflow.com/questions/49088232/installing-lapack-on-osx

来源： https://stackoverflow.com/questions/58143647/how-to-break-to-new-line-in-fortran-when-printing

来源： https://stackoverflow.com/questions/58143647/how-to-break-to-new-line-in-fortran-when-printing

来源： https://stackoverflow.com/questions/58143647/how-to-break-to-new-line-in-fortran-when-printing

问题 I am using gfortran 8.4 in Ubuntu with a deferred-length character variable as in the following example: PROGRAM test IMPLICIT NONE CHARACTER(LEN=:),ALLOCATABLE :: str str = '10' END PROGRAM test If I compile it using: gfortran-8 test.f90 -o test -O0 When running the program using Valgrind I get a memory leak: ==29119== HEAP SUMMARY: ==29119== in use at exit: 2 bytes in 1 blocks ==29119== total heap usage: 22 allocs, 21 frees, 13,522 bytes allocated ==29119== ==29119== LEAK SUMMARY: ==29119==

问题 This problem has been around for a few years, but I never heard of a good solution to it. If a Fortran subroutine includes a module with an interface to itself subroutine stuff(nz,z,dt) use allinterfaces ... an error occurs Error: 'stuff' of module 'allinterfaces', imported at (1), is also the name of the current program unit To fix it I have to declare subroutine stuff(nz,z,dt) use allinterfaces, except_this_one => stuff ... This is absurd behavior and annoying since I like to include all

问题 I am having some issues on reading a binary (unformatted restart file ~2GB ) written within a Fortran program, by the call here below: open(unit=1,file=opfile,status="unknown",form="unformatted") ! write(1) t ! write(1) Rho, Rho_ut, Rho_ur, Rho_uz, Rho_Ya ! close(1) that has been compiled with ifort on an Intel Xeon Phi 7250 CPU (KNL) architecture. When the same code, that has now been compiled with gfortran on an IBM POWER9 AC922 architecture, read this file with the call here below: open

问题 Consider the following code: subroutine tao_show_this () implicit none type b_struct integer, pointer :: good_user => null() end type type a_struct type (b_struct), allocatable :: value_ptr(:) end type type (a_struct) a a = a_struct() end subroutine Compiling with gfortran 5 or 7 gives: gfortran -c test.f90 test.f90:4:13: type b_struct 1 Error: The rank of the element in the structure constructor at (1) does not match that of the component (0/1) This code compiles fine with ifort. Is this a

问题 I am using Bellhop ray tracing algorithm for MacOS. I have downloaded the source code for MacOS without the binaries. I want to change my gfortran version from 9.2.0 to 8.3.0. I installed it using homebrew. I have version 9.2.0 installed. I have it installed at /usr/bin/ I cannot seem to find any commands online to change the version. gfortran -dumpversion This gave me my version number but I cannot seem to find a command to get a different version. I am working on macOS (Mojave V 10.14.6). I