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20.3.18 Miscellaneous parameters

PARAM,code1=value,code2=value$\ldots$

Redefine system parameters. If no codes are specified, the default values are displayed. The following codes are allowed:

LSEG:
disc sector length
INTREL:
number of integers per REAL*8 word
IVECT=0:
scalar machine
IVECT=1:
vector machine
MINVEC:
call MXMB in coupling coefficient routines if vector length larger than this value.
IBANK:
number of memory banks for vector machines. If IBANK$>$1, vector strides which are multiples of IBANK are avoided where appropriate.
LTRACK:
number of REAL*8 words per track or block (for file allocation)
LTR:
determines how matrices are stored on disc. If LTR=LSEG, all matrices start at sector boundaries (which optimizes I/O), but unused space is between matrices (both on disc and in core). With LTR=1 all matrices are stored dense. This might increase I/O if much paging is necessary, but reduce I/O if everything fits in core.
NCPUS:
Maximum number of CPUs to be used in multitasking.


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