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Overview
FluTAS (Fluid Transport Accelerated Solver) is an open-source code targeting multiphase fluid dynamics simulations. The key feature of FluTAS is the ability to efficiently run both on many-CPUs and many-GPUs in a single and unified framework.
This framework is also designed to be modular so that it can be extended in a sustainable manner.
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Downloading and compiling FluTAS
Download the application:
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cd FluTAS/src
# Edit FC name and FFTW path in targets/target.generic-intel.
# MPI=intelmpi-2021.7.0
MPI=hpcx/2.15.0
if [[ "$MPI" =~ ^intel ]]; then
module load intel/2022.1.0
module load fftw/3.3.10-impi
export I_MPI_F90=ifort
elif [[ "$MPI" =~ ^openmpi ]]; then
module load fftw/3.3.10-ompi
export OMPI_MPIF90=ifort
fi
module load $(echo $MPI | sed -e "s/\-/\//")
make ARCH=generic-intel APP=two_phase_ht DO_DBG=0 DO_POSTPROC=0 |
Running Example
Before you start, make sure to change the process grid in dns.in:
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/usr/bin/time mpirun -np 256 $MPIFLAGS flutas the used processor grid is 16 by 16 Padded ALLTOALL optimisation on ************************************************ *** Beginning of simulation (TWO-PHASE mode) *** ************************************************ *** Initial condition succesfully set *** dtmax = 3.322388020223433E-003 dt = 1.661194010111717E-003 *** Calculation loop starts now *** ... *** Fim *** OUT:initial : 6.335s ( 1 calls) STEP : 14.630s ( 1000 calls) VOF : 9.309s ( 1000 calls) RK : 0.545s ( 1000 calls) SOLVER : 1.264s ( 1000 calls) CORREC : 0.588s ( 1000 calls) POSTPROC : 0.117s ( 1000 calls) OUT:iout0d : 0.005s ( 2 calls) OUT:iout1d : 0.000s ( 1 calls) OUT:iout3d : 4.267s ( 1 calls) OUT:isave : 4.277s ( 1 calls) |
Task and submission
Use this input, two_layer_rb.
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