Debugging using gdb - A walkthrough
To illustrate the debugging process, there are C and Fortran example codes at the end of the tutorial that include both a floating point error and a segmentation fault. These examples are trivial, and are simply intended to show how easy it is to use the debugger. Note that the behaviour of the debugger is the same regardless of the language one is using, so we'll just show the C example in the walk-through that follows.
first bug: an FPE
First, to illustrate what happens when the code is run as is:
gcc...
Saturday, August 17, 2013
Wednesday, August 7, 2013
5:41 AM
Matrix Market File format & PetSc Bin
If you have developed a CFD solver then most likely you have generated a sparse linear system which needs to be solved one way or the other. Apart from the standard Intel or other libraries, it would be definitely advantageous to use the PetSc library. PetSc has huge capabilities varying from linear solvers, pre-conditioners, eigenvalue analysis, to the CPU / GPU implementations.
Getting to know PetSc will take sometime but it is greatly beneficial to employ matrix and vector operations. The only...
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