aladyn's Introduction
----------------------------------------------------------------------- 04-26-2019 ALADYN mini-app is a simple molecular dynamics (MD) code for performing constant energy atomistic simulations using artificial neural networks (ANN) interatomic potential trained for Al crystal structure. The trained ANN was produced and offered by Ganga P. Pun and Yuri Mishin from George Mason University. ======================================================================= COMPILATION ----------------------------------------------------------------------- * FORTRAN compiler (Intel 2003 or newer, or PGI FORTRAN with OpenACC) ----------------------------------------------------------------------- Source directory: ALADYN.source ----------------------------------------------------------------------- Compilation: use the provided makefiles with the following options: Intel compiler: > make -f makefile.intel ! compiles with -O3 optimization on > make -f makefile.intel DEBUG=TRUE ! check and warning flags on > make -f makefile.intel OMP=TRUE ! compile with OpenMP direectives PGI compiler: > make -f makefile.pgi ! compiles with -O3 optimization on > make -f makefile.pgi DEBUG=TRUE ! check and warning flags on > make -f makefile.pgi OMP=TRUE ! compile with OpenMP direectives > make -f makefile.pgi ACC=TRUE ! compile with OpenMP+OpenACC direectives Edit the provided makefiles for specific compiler option of your choice ======================================================================= EXECUTION ----------------------------------------------------------------------- Run from the example (test) directory: ALADYN.test Running a tets case: > aladyn ! executes 10 MD steps reporting at each step > aladyn -n 100 -m 10 ! executes 100 MD steps, reporting every 10-th step Available PBS scripts used for NASA/LaRC K3 cluster: ALADYN_intel.job - run the intel version ALADYN_pgi_V100.job - run the pgi version with OpneACC for V100 gpu. Screen output is riderected to aladyn.out Example outputs are saved in: aladyn_intel.out and aladyn_pgi.out ======================================================================= INPUT FILES: ----------------------------------------------------------------------- ANN.dat - Neural network potential file structure.plt - input atomic structure file ----------------------------------------------------------------------- --- Available test structures in directory STR: Al_N4000.plt - 4000 atoms Al crystal Al_N8000.plt - 8000 atoms Al crystal Al_N16000.plt - 16000 atoms Al crystal Al_N32000.plt - 32000 atoms Al crystal Al_N64000.plt - 64000 atoms Al crystal Al_N128000.plt - 128000 atoms Al crystal Al_N192000.plt - 192000 atoms Al crystal Al_N256000.plt - 256000 atoms Al crystal Use any of the above structures by linking them to structure.plt, e.g., > ln -s STR/Al_N4000.plt structure.plt ======================================================================= SOURCE FILES: aladyn.f - Main program aladyn_sys.f, aladyn_sys_OMP.f, aladyn_sys_NO_OMP.f - system modules aladyn_mods.f - general purpose modules aladyn_IO.f - I/O operations module aladyn_ANN.f - ANN potential energy and force calculation module contains: subroutine Frc_ANN_OMP ! force & energy calculation (OpenMP version) subroutine Frc_ANN_ACC ! force & energy calculation (OpenACC version) aladyn_MD.f - molecular dynamics module contains: subroutine get_T ! Calculates current system temperature subroutine predict_atoms ! Gear predictor call ! subroutine correct_atoms ! Gear corrector call ! ----------------------------------------------------------------------- Suggested subroutines for optimization: Frc_ANN_OMP and Frc_ANN_ACC For further information contact: Vesselin Yamakov National Institute of Aerospace 100 Exploration Way, Hampton, VA 23666 phone: (757)-864-2850 fax: (757)-864-8911 e-mail: [email protected] ======================================================================= Notices: Copyright 2018 United States Government as represented by the Administrator of the National Aeronautics and Space Administration. All Rights Reserved. Disclaimers: No Warranty: THE SUBJECT SOFTWARE IS PROVIDED "AS IS" WITHOUT ANY WARRANTY OF ANY KIND, EITHER EXPRESSED, IMPLIED, OR STATUTORY, INCLUDING, BUT NOT LIMITED TO, ANY WARRANTY THAT THE SUBJECT SOFTWARE WILL CONFORM TO SPECIFICATIONS, ANY IMPLIED WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE, OR FREEDOM FROM INFRINGEMENT, ANY WARRANTY THAT THE SUBJECT SOFTWARE WILL BE ERROR FREE, OR ANY WARRANTY THAT DOCUMENTATION, IF PROVIDED, WILL CONFORM TO THE SUBJECT SOFTWARE. THIS AGREEMENT DOES NOT,IN ANY MANNER, CONSTITUTE AN ENDORSEMENT BY GOVERNMENT AGENCY OR ANY PRIOR RECIPIENT OF ANY RESULTS, RESULTING DESIGNS, HARDWARE, SOFTWARE PRODUCTS OR ANY OTHER APPLICATIONS RESULTING FROM USE OF THE SUBJECT SOFTWARE. FURTHER, GOVERNMENT AGENCY DISCLAIMS ALL WARRANTIES AND LIABILITIES REGARDING THIRD-PARTY SOFTWARE, IF PRESENT IN THE ORIGINAL SOFTWARE, AND DISTRIBUTES IT "AS IS."โจ Waiver and Indemnity: RECIPIENT AGREES TO WAIVE ANY AND ALL CLAIMS AGAINST THE UNITED STATES GOVERNMENT, ITS CONTRACTORS AND SUBCONTRACTORS, AS WELL AS ANY PRIOR RECIPIENT. IF RECIPIENT'S USE OF THE SUBJECT SOFTWARE RESULTS IN ANY LIABILITIES, DEMANDS, DAMAGES, EXPENSES OR LOSSES ARISING FROM SUCH USE, INCLUDING ANY DAMAGES FROM PRODUCTS BASED ON, OR RESULTING FROM, RECIPIENT'S USE OF THE SUBJECT SOFTWARE, RECIPIENT SHALL INDEMNIFY AND HOLD HARMLESS THE UNITED STATES GOVERNMENT, ITS CONTRACTORS AND SUBCONTRACTORS, AS WELL AS ANY PRIOR RECIPIENT, TO THE EXTENT PERMITTED BY LAW. RECIPIENT'S SOLE REMEDY FOR ANY SUCH MATTER SHALL BE THE IMMEDIATE, UNILATERAL TERMINATION OF THIS AGREEMENT. =======================================================================
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