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#1
General / Re: RASPA3 Release
Last post by youriran - Today at 03:30:41 PMRASPA3 is currently still in the beta-phase. This means that not all functionality found in RASPA2 is already implemented and this means that bugs might still occur.
A list of features that are yet to be implemented can be found on github.
If you do find any bugs, please, report them so we can try fixing them.
Best,
Youri
A list of features that are yet to be implemented can be found on github.
If you do find any bugs, please, report them so we can try fixing them.
Best,
Youri
#2
General / RASPA3 Release
Last post by youriran - Today at 03:27:41 PMDear everyone,
We are happy to announce the release of RASPA3. Monte Carlo with expanded ensembles are powerful methods to compute adsorption and diffusion processes in nanoporous materials. The code has been rewritten from the ground up in modern C++. Composition and value semantics allows building complex objects from simple code. Rethinking memory structures for systems and atoms drastically improves the computational efficiency of insertions and deletions.
The code shows speed ups of up to 6 times compared to RASPA2 for computing adsorption isotherms for benchmark systems, while also preserving the validity previously found in RASPA2.
Furthermore we added new features, such as fully integrated thermodynamic integration, a python API, transition-matrix Monte Carlo and improved output files for density computation. Accessibility has been improved through JSON input scripts and the python API. The code is available as binary packages through GitHub.
The new object-oriented C++ implementation allows interfacing to other codes and modular implementation of new features. Feel free to open a GitHub issue or collaborate!
The code is available via:
https://github.com/iraspa/raspa3
The accompanying paper can be found at:
JCP
Kind regards,
The RASPA3 team
We are happy to announce the release of RASPA3. Monte Carlo with expanded ensembles are powerful methods to compute adsorption and diffusion processes in nanoporous materials. The code has been rewritten from the ground up in modern C++. Composition and value semantics allows building complex objects from simple code. Rethinking memory structures for systems and atoms drastically improves the computational efficiency of insertions and deletions.
The code shows speed ups of up to 6 times compared to RASPA2 for computing adsorption isotherms for benchmark systems, while also preserving the validity previously found in RASPA2.
Furthermore we added new features, such as fully integrated thermodynamic integration, a python API, transition-matrix Monte Carlo and improved output files for density computation. Accessibility has been improved through JSON input scripts and the python API. The code is available as binary packages through GitHub.
The new object-oriented C++ implementation allows interfacing to other codes and modular implementation of new features. Feel free to open a GitHub issue or collaborate!
The code is available via:
https://github.com/iraspa/raspa3
The accompanying paper can be found at:
JCP
Kind regards,
The RASPA3 team
#3
General / Re: RxMC ensemble
Last post by dubbelda - September 30, 2024, 01:52:27 PMThey are input, you set these. These probabilities are relative to each other, and they do not influence the accuracy of the computation, just the efficiency.
#4
General / Re: Can the cavity of a MOF be...
Last post by dubbelda - September 30, 2024, 01:45:40 PMThere is a 'help' in iRASPA ('help' menu). In principle, this is about understanding the three panes in the top-left: (I) projects, (II) scenes, (III) movie frames. If you select the second tab, you can add structures to the scene.
'File' -> 'New' -> 'Objects' -> 'Ellipsoid' and then edit the properties.
'File' -> 'New' -> 'Objects' -> 'Ellipsoid' and then edit the properties.
#5
General / Re: Enthalpy of adsorption
Last post by dubbelda - September 30, 2024, 01:07:58 PMThis works in raspa3 now.
#6
General / Re: Inaccurate Adsorption Isot...
Last post by dubbelda - September 30, 2024, 10:58:16 AMI do not see the charges of the framework. How do you set these? In the input the charges for the framework appear to be zero.
#7
General / Re: How to make adsorption den...
Last post by dubbelda - September 30, 2024, 10:55:24 AMFirst in RASPA do a Monte Carlo simulation with some particles and create the 3D density grid.
Page 172 manual:
ComputeDensityProfile3DVTKGrid yes
WriteDensityProfile3DVTKGridEvery 10000
DensityProfile3DVTKGridPoints 150 150 150
Than it creates files which can you import in iRASPA.
In RASPA3, it will write out a cube-file, which you can also import in iRASPA.
Page 172 manual:
ComputeDensityProfile3DVTKGrid yes
WriteDensityProfile3DVTKGridEvery 10000
DensityProfile3DVTKGridPoints 150 150 150
Than it creates files which can you import in iRASPA.
In RASPA3, it will write out a cube-file, which you can also import in iRASPA.
#8
General / Re: Single point calculation f...
Last post by dubbelda - September 30, 2024, 10:52:36 AMUse a restart-file:
Reads the positions, velocities, and force from the directory 'RestartInitial'. Any creation of molecules in the 'simulation.input' file will be in addition and after this first read from file. This is useful to loadinitial positions of cations for example, and after that create adsorbates. The restart file is written at 'PrintEvery' intervals.
Easiest is to first create a system with the desired number of molecules. Then run it to get a restart-file. Move the directory from 'Restart' to 'RestartInitial' and edit the positions. Then rerun with 'RestartFile yes' (and set 'CreateNumberOfMolecules 0' since they now come from the restart-file).
Reads the positions, velocities, and force from the directory 'RestartInitial'. Any creation of molecules in the 'simulation.input' file will be in addition and after this first read from file. This is useful to loadinitial positions of cations for example, and after that create adsorbates. The restart file is written at 'PrintEvery' intervals.
Easiest is to first create a system with the desired number of molecules. Then run it to get a restart-file. Move the directory from 'Restart' to 'RestartInitial' and edit the positions. Then rerun with 'RestartFile yes' (and set 'CreateNumberOfMolecules 0' since they now come from the restart-file).
#9
Different between what and what? What is the expected value and you're getting a wrong value? More info is needed.
#10
General / Re: iRASPA Potential Energy Su...
Last post by dubbelda - September 30, 2024, 10:46:32 AMUnder "Appearances" you have "Volumetric data": click "Show grid data" and set rendering method to "isosurface".
No, you cannot get the energy per molecule, only the total energy of the component. Note however, that all molecules are equivalent, so you could just divide by the amount of molecules.
No, you cannot get the energy per molecule, only the total energy of the component. Note however, that all molecules are equivalent, so you could just divide by the amount of molecules.