On 6/27/25 1:08 PM, Toon Moene wrote:
On 6/27/25 17:41, Toon Moene wrote:
Note: as the timeline at the top of the source implies, I have worked on this
until early 2021.
This means it compiled with gfortran 10 and 11.
So the problem is probably introduced after these versions.
[ Of course, while I perused the Fortran 2018 standard while writing this
code, I could easily have made an error that gfortran 10/11 simply didn't
catch. ]
I just used the following:
I managed to rebuild OpenCoarrays with gfortran 14. I bypassed the namelist
read for image 1 to simplify and use the defaults. I can use this as a baseline
for comparisons. I do not have a shared memory version working yet.
Jerry
$ rm *.mod
$ caf random-weather.f90
$ time cafrun -np 9 ./a.out
Decomposition information on image 1 : there are 9 * 1 slabs; the slabs
are 8 * 70 grid cells in size.
Decomposition information on image 4 : there are 9 * 1 slabs; the slabs
are 8 * 70 grid cells in size.
Decomposition information on image 9 : there are 9 * 1 slabs; the slabs
are 8 * 70 grid cells in size.
Decomposition information on image 2 : there are 9 * 1 slabs; the slabs
are 8 * 70 grid cells in size.
Decomposition information on image 3 : there are 9 * 1 slabs; the slabs
are 8 * 70 grid cells in size.
Decomposition information on image 5 : there are 9 * 1 slabs; the slabs
are 8 * 70 grid cells in size.
Decomposition information on image 7 : there are 9 * 1 slabs; the slabs
are 8 * 70 grid cells in size.
Decomposition information on image 8 : there are 9 * 1 slabs; the slabs
are 8 * 70 grid cells in size.
Decomposition information on image 6 : there are 9 * 1 slabs; the slabs
are 8 * 70 grid cells in size.
Time 0 Image 1 PS= 99981.2109 T= 300.248199
U= 1.40828133 V= -12.5582199 W= -1.27365887E-02 Q=
2.00838665E-03
Time 0 Image 2 PS= 99981.9531 T= 299.867096
U= 17.6945534 V= 21.5538158 W= -4.10759933E-02 Q=
1.77268963E-03
Time 0 Image 3 PS= 99991.2422 T= 299.674774
U= 21.6714897 V= 2.91357994 W= -4.55363318E-02 Q=
1.97232608E-03
Time 0 Image 4 PS= 100023.133 T= 300.284668
U= -20.5439854 V= -2.53082943 W= 0.127494216 Q=
1.84043217E-03
Time 0 Image 5 PS= 99992.8906 T= 299.963531
U= 10.4467106 V= 21.5147152 W= 0.228881583 Q=
2.10474734E-03
.
.
.
Time 3600 Image 1 PS= 99983.8438 T= 299.589111
U= -21.4619408 V= -18.8246746 W= 1.01720989E-02 Q=
1.55027839E-03
Time 3600 Image 2 PS= 99983.3594 T= 299.414215
U= 17.0610657 V= 1.57637787 W= -0.424374938 Q=
2.15925346E-03
Time 3600 Image 5 PS= 100047.078 T= 301.533661
U= -0.267427444 V= 6.67605972 W= 9.31660235E-02 Q=
3.30941868E-03
Time 3600 Image 6 PS= 99928.2422 T= 301.171844
U= 10.0648623 V= -12.2755585 W= -0.216687098 Q=
2.38793110E-03
Time 3600 Image 7 PS= 100004.266 T= 300.392883
U= -1.27903223 V= -8.06934357 W= -1.16891116E-02 Q=
1.46662630E-03
Time 3600 Image 8 PS= 99970.1953 T= 300.805756
U= -2.01795101 V= 6.29295492 W= 0.460557282 Q=
2.66364752E-03
Time 3600 Image 9 PS= 99951.7422 T= 300.772064
U= -29.1435776 V= 3.12836075 W= 0.183356822 Q=
1.01996015E-03
Time 3600 Image 3 PS= 100033.242 T= 299.591583
U= -29.1381416 V= 25.5206833 W= -0.373341858 Q=
1.86515716E-03
Time 3600 Image 4 PS= 99987.3750 T= 300.154602
U= -19.5735817 V= 25.6468697 W= 0.309570014 Q=
1.84511195E-03
real 0m7.426s
user 0m47.602s
sys 0m42.707s
