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Right now, fractions in the progress indicator used by pipelining are stored with typeid(T).name() as the key, resulting in humongous names because of the nested templates used in pipelining. This is a problem since the keys are used in string comparisons, so we should make them shorter by some kind of hashing scheme.
We need to resolve this, perhaps let's have a discussion in the office when Jakob returns.
Right now the fraction name is the typeid name which is not portable, meaning a fraction db generated from a GCC/Clang build is useless in an MSVC release build.