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psblas3/notes.txt

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1. Perhaps we should switch completely to external indices being of
kind LPK and internal indices being of type IPK, and the two morph
independently in int32/int64 (although admittedly LPK=32 and IPK=64
does not make much sense)
2. Change sizeof_ constant names accordingly to sizeof_ipk and
sizeof_lpk.
3. Should we define a psb_l_vect_type? But then, if I==L how can we
distinguish? Answer: if I==L the two vect type are still considered
different, even when internally they are the same.
4. So, let's rewrite under these rules:
psb_mpk_: Always 32 bits, used for MPI related stuff.
psb_ipk_: Can be 32 or 64 bits, always used for "local" indices and
sizes
psb_lpk_: Can be 32 or 64 bits, always used for "global" indices
and sizes, must be psb_lpk_ >= psb_ipk_
psb_8pk_: always 64 bits, used for SIZEOF & friends.