Resolve "Segmentation fault in FromFile due to RASTER=TRUE"

Closes #465 (closed)

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• 3fe71d24 - All masters need to read the full file otherwise we do not

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• 61e3fb62 - add missing destructor in order to avoid segmentation fault at exit

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assigned to @frey_m

approved this merge request

@frey_m : the fix is different from the one proposed in the issue. Can you explain a bit what you changed, and how this is / was supposed to work?

@snuverink_j I first did the proposed fix but then realized that in case of multiple masters the implementation is wrong. As you can see in the code, the parsing is split up among the MPI-ranks (masters only). If a user has RASTER=TRUE and multiple masters this won't work since all masters need to know all samples. Otherwise samples are missed.

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mentioned in commit b93e0537

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mentioned in merge request !276 (merged)