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ASPECT
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ASPECT
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A class we throw in exceptions in parallel jobs and that we can silently treat in main(). We do this, for example, in read_parameters() where each processor would otherwise throw the same exception and every processor would produce a tangle of output that is impenetrable in large parallel jobs. The same situation happens if a linear solver fails. Rather, we make processor 0 throw the real exception and every other processor converts the exception it wants to throw to an object of the current type – which is caught in main() but doesn't produce any output (because processor 0 will already produce the output).