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Advanced Simulation Library
	Multicomponent flow simulation
Developer(s)	Avtech Scientific
Initial release	14 May 2015; 9 years ago
Stable release	0.1.7 / 9 November 2016; 8 years ago
Repository	github.com/AvtechScientific/ASL
Written in	C++
Operating system	Unix/Linux, Windows, Mac
Type	Multiphysics, Computer-aided engineering, Computational fluid dynamics, Simulation software
License	GNU Affero General Public License, optional commercial license (based on MIT License)
Website	asl.org.il

Multicomponent flow video

Advanced Simulation Library (ASL) is a free and open-source hardware-accelerated multiphysics simulation platform. It enables users to write customized numerical solvers in C++ and deploy them on a variety of massively parallel architectures, ranging from inexpensive FPGAs, DSPs and GPUs^[1] up to heterogeneous clusters and supercomputers. Its internal computational engine is written in OpenCL and utilizes matrix-free solution techniques. ASL implements variety of modern numerical methods, i.a. level-set method, lattice Boltzmann, immersed boundary. The mesh-free, immersed boundary approach allows users to move from CAD directly to simulation, reducing pre-processing efforts and number of potential errors. ASL can be used to model various coupled physical and chemical phenomena, especially in the field of computational fluid dynamics. It is distributed under the free GNU Affero General Public License with an optional commercial license (which is based on the permissive MIT License).

History

Advanced Simulation Library is being developed by Avtech Scientific, an Israeli company. Its source code was released to the community on 14 May 2015, whose members packaged it for scientific sections of all major Linux distributions shortly thereafter.^[2]^[3]^[4]^[5]^[6]^[7] Subsequently, Khronos Group acknowledged the significance of ASL and listed it on its website among OpenCL-based resources.^[8]

Application areas

Advantages and disadvantages

Advantages

C++ API^[9] (no OpenCL knowledge required)
Mesh-free, immersed boundary approach allows users to move from CAD directly to computations reducing pre-processing effort
Dynamic compilation enables an additional layer of optimization at run-time (i.e. for a specific parameters set the application was provided with)
Automatic hardware acceleration and parallelization of applications
Deployment of same program on a variety of parallel architectures - GPU, APU, FPGA, DSP, multicore CPUs
Ability to deal with complex boundaries
Ability to incorporate microscopic interactions
Availability of the source code

Disadvantages

Absence of detailed documentation (besides the Developer Guide generated from the source code comments)
Not all OpenCL drivers are mature enough for the library^[10]

Features

ASL provides a range of features to solve number of problems - from complex fluid flows involving chemical reactions, turbulence and heat transfer, to solid mechanics and elasticity.^[11]

Interfacing: VTK/ParaView, MATLAB (export).
- import file formats: .stl .vtp .vtk .vti .mnc .dcm
- export file formats: .vti .mat
Geometry:
- flexible and complex geometry using simple rectangular grid
- mesh-free, immersed boundary approach
- generation and manipulation of geometric primitives
Implemented phenomena:
- Transport processes
  - multicomponent transport processes
  - compressible and incompressible fluid flow
- Chemical reactions
  - electrode reactions
- Elasticity
  - homogeneous isotropic elasticity
  - homogeneous isotropic poroelasticity
- Interface tracking
  - evolution of an interface
  - evolution of an interface with crystallographic kinetics