next up previous contents index
Next: MY_TINY Up: Pre-compiler flags overview, parallel Previous: noSTOPCAR   Contents   Index

F90_T3D

Compile for the T3D, this has only minor effects, for instance some compiler directives like

!DIR$ IVDEP
are changed to
!DIR$
The first directive is required on a Cray vector machines for correct vectorisation, but it gives a warning on the T3D.

In addition the STOPCAR file will not be read on the T3D in each iteration (see previous subsection) because re-reading the STOPCAR file is too expensive (0.5-1 sec) on a T3D. The F90_T3D flag must also be specified if the scaLAPACK flag is used on the T3D, since the T3D requires that some arrays are allocated in a special way (shmem-allocation).


N.B. Requests for support are to be addressed to: vasp.materialphysik@univie.ac.at