Commit 60b33fe9 authored by Pavel Kus's avatar Pavel Kus
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copy a_dev to a_mat at the end of bandred instead of later

Previously, matrix a has been kept on the device at the end of bandred
and then copied to host later in redist_band (called from tridiag_band).
However, it seems to be more convenient to do it at the end of bandred
(since it has to be done anyway). Band to tridi is thus now not using a
on the device at all.  However, we keep it in the interface, sice it
might be usefull in the future.
parent 98e3e884