...
Note: For the in-person event, a Fortran compiler supporting the entire Fortran 2008 standard is required; compilers with partial support are not supported. Therefore, it It is not allowed to apply any patches located in patches/ nor modify src/common/signal.f90, with the exception of provided patches located in patches/.
Sample build script:
Build json-fortran:
...
| Code Block |
|---|
# Untar tgv.zip cd tgv # Load Intel Compilers and MPI libraries. export MPIFC=mpiifort export FC=$MPIFC export LD_LIBRARY_PATH=<path>/json-fortran/lib64:$LD_LIBRARY_PATH <path>/neko/bin/makeneko ${TEST}.f90 mpirun -np <NPROC> -genv USE_UCX=1 -genv UCX_NET_DEVICES mlx5_0:1 -genv FI_PROVIDER=mlx ./neko tgv_Re1600.case |
Sample output:
| Code Block |
|---|
_ __ ____ __ __ ____
/ |/ / / __/ / //_/ / __ \
/ / / _/ / ,< / /_/ /
/_/|_/ /___/ /_/|_| \____/
(version: 0.8.0-rc1)
(build: 2024-04-10 on x86_64-pc-linux-gnu using cray)
-------Job Information--------
Start time: 10:41 / 2024-04-10
Running on: 256 MPI ranks
CPU type : AMD EPYC 7742 64-Core Processor
Bcknd type: CPU
Real type : double precision
-------------Case-------------
Reading case file tgv_Re1600.case
-------------Mesh-------------
Reading a binary Neko file 32768.nmsh
...
-----Material properties------
Read non-dimensional values:
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-----Starting simulation------
T : [ 0.0000000E+00, 0.2000000E+01)
dt : 0.5000000E-03
...
----------------------------------------------------------------
t = 0.0000000E+00 [ 0.00% ]
----------------------------------------------------------------
Time-step: 1
CFL: 0.3970812E-01 dt: 0.5000000E-03
...
----------------------------------------------------------------
t = 0.2683500E+01 [ 26.84% ]
----------------------------------------------------------------
Time-step: 5368
CFL: 0.4915199E-01 dt: 0.5000000E-03
------------Fluid-------------
Projection Pressure
Proj. vec.: Orig. residual:
2 0.4020491E-05
Pressure
Iterations: Start residual: Final residual:
1 0.2061696E-06 0.8489571E-07
X-Velocity
Iterations: Start residual: Final residual:
2 0.8948043E-03 0.1355196E-08
Y-Velocity
Iterations: Start residual: Final residual:
2 0.8948043E-03 0.1355196E-08
Z-Velocity
Iterations: Start residual: Final residual:
2 0.8240080E-03 0.1270342E-08
Elapsed time (s): 0.8980917E+03 Step time: 0.1604918E+00
--------Postprocessing--------
! stop at job limit >>>
! saving checkpoint >>>
Normal end. |
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Run Neko with the given input
(View file name tgv.zip neko tgv_Re1600.case) on either CPUs or GPUs and submit the .Submit your best result (standard output). Do not submit binary output files nor multiple results.
Note: You are allowed to experiment with different linear solvers in Neko (see the manual) to achieve the fastest runtime. However, all of them are not guaranteed to work for the given case or support all hardware backends in Neko. Furthermore, it is allowed to experiment with different configuration options when building Neko, e.g., enabling device-aware MPI. However, it is not allowed to use single precision, changing the time-step size or any other parameters related to the case.