Hi Andre, All six patches require git apply --whitespace=fix --ignore-space-change < ~/prs/Shared_Memory/pr88076_v1_x.patch to apply.
The build fails with: Makefile:3848: caf/.deps/caf_error.Plo: No such file or directory make[2]: *** No rule to make target 'caf/.deps/caf_error.Plo'. Stop. make[2]: Leaving directory '/home/pault/gitsources/build/x86_64-pc-linux-gnu/libgfortran' make[1]: *** [Makefile:16529: install-target-libgfortran] Error 2 make[1]: Leaving directory '/home/pault/gitsources/build' make: *** [Makefile:2668: install] Error 2 I am afraid that I have timed out for the next two weeks - sorry. Regards Paul On Tue, 24 Jun 2025 at 14:10, Andre Vehreschild <ve...@gmx.de> wrote: > Hi all, > > this series of patches (six in total) adds a new coarray backend library to > libgfortran. The library uses shared memory and processes to implement > running multiple images on the same node. The work is based on work > started by > Thomas and Nicolas Koenig. No changes to the gfortran compile part are > required > for this. > > Unfortunately I found some defects in the gfortran compiler, that needed > to be > fixed. These are the first four tiny patches. The fifth patch then adds the > library and sixth patches the testcases in > gcc/testsuite/gfortran.dg/coarray to > also run (and pass) when linked against caf_shmem. > > The development has been done on x86_64-pc-linux-gnu / Fedora 41. I am > curious > to learn which fixes will be needed for other platforms. > > This will be the last big patch that was funded by the STF/STA. My funding > has > run out and I will only be available for a few days before a new project > will > consume my attention. Therefore please bring any deficiencies to my > attention > as soon as possible. > > I have done some performance measurement against OpenCoarrays measuring > coarray_icarr from https://github.com/gutmann/coarray_icar . The figures > are: > > OpenCoarrays (mpich4-backend): 165.578s (real 2m59,947s) > -------------------------------------------------- > caf_shmem (16-trunk): 61.489s (real 1m3,681s) > > The first number is the "Model run time:" as reported by the program. In > the > parentheses the real run time as reported by the bash command `time` is > given. > > Both are done using a debug build of coarray_icar on an Intel Core > i7-5775C CPU > @ 3.30GHz having 24GB, and running Fedora Linux 41 with all recent patches. > > Regards, > Andre > -- > Andre Vehreschild * Email: vehre ad gmx dot de >
