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...ions of code requires a degree of care--in particular, we have found it to be necessary to provide Python with enhanced I/O support to run properly in parallel. This work has been described elsewhere =-=[5, 6]-=-. Handling two operational modes introduces a number of problems related to code maintenance and installation. Traditionally, we would recompile the entire system and all of its modules for each confi...

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...d for the Connection Machine 5 massively parallel supercomputing system and later moved to a number of other machines including the Cray T3D, multiprocessor Sun and SGI systems, and Unix workstations =-=[1, 2]-=-. Our goal has been to investigate material properties such as fracture, crack propagation, dislocation generation, friction, and ductile-brittle transitions [3]. The SPaSM code helps us investigate t...

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...ar, a discussion of writing parallel I/O wrappers for Python can be found in [5]. An earlier discussion of the technique we have used for writing message passing and I/O wrappers can also be found in =-=[7]-=-. 5 Module Building with SWIG To build modules, we have been using SWIG [8]. Each module is described by a SWIG interface file containing the ANSI C declarations of functions, structures, and variable...

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...n [5]. An earlier discussion of the technique we have used for writing message passing and I/O wrappers can also be found in [7]. 5 Module Building with SWIG To build modules, we have been using SWIG =-=[8]-=-. Each module is described by a SWIG interface file containing the ANSI C declarations of functions, structures, and variables in that module. For example : // SWIG interface file %module SPaSM %{ #in...

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...d for the Connection Machine 5 massively parallel supercomputing system and later moved to a number of other machines including the Cray T3D, multiprocessor Sun and SGI systems, and Unix workstations =-=[1, 2]-=-. Our goal has been to investigate material properties such as fracture, crack propagation, dislocation generation, friction, and ductile-brittle transitions [3]. The SPaSM code helps us investigate t...

Citation Context

...d for the Connection Machine 5 massively parallel supercomputing system and later moved to a number of other machines including the Cray T3D, multiprocessor Sun and SGI systems, and Unix workstations =-=[1, 2]-=-. Our goal has been to investigate material properties such as fracture, crack propagation, dislocation generation, friction, and ductile-brittle transitions [3]. The SPaSM code helps us investigate t...

Citation Context

...ions of code requires a degree of care--in particular, we have found it to be necessary to provide Python with enhanced I/O support to run properly in parallel. This work has been described elsewhere =-=[5, 6]-=-. Handling two operational modes introduces a number of problems related to code maintenance and installation. Traditionally, we would recompile the entire system and all of its modules for each confi...

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...mmunity. Efforts at Lawrence Livermore National Laboratory and elsewhere were attractive--in particular, we saw Python as being a potential vehicle for sharing modules and utilizing third-party tools =-=[4, 9, 10]-=-. 3 System Organization Our goal was to build a highly modular system that could perform simulation, data analysis, and visualization-- often performing all of these tasks simultaneously. Unfortunatel...