NX Nastran DMAP Programmer's Guide - Kxcad.net

1225
MPYAD
Matrix multiply and add
Method
Storage
Technique
MPYAD
Keyword
Deselection
Value
3 Nontranspose --- 16
3 Transpose --- 32
4 Nontranspose --- 64
4 Transpose --- 128
1 Nontranspose A 256
1 Nontranspose B 512
1 Nontranspose C 1024
1 Nontranspose D 2048
1 Nontranspose E 4096
1 Nontranspose F 8192
1 Transpose A 16384
1 Transpose B 32768
1 Transpose C 65536
1 Transpose D 131072
• For methods 2, 3, and 4, a combination of methods is selected by subtracting
the sum of their Deselection Values from 255. For example, NASTRAN
MPYAD = 243 (which is obtained from 255-(4+8)) selects only Methods 2
Transpose and Nontranspose.
• For Method 1 Submethods (storage techniques), a combination of methods is
selected accordingly. First sum their Deselection Values and then add 1, if
Nontranspose, and/or 2, if Transpose. This total is then subtracted from
262143. See examples below.
Example 1: If only Method l Nontranspose with storage techniques D,
E, and F are desired, then NASTRAN MPYAD=247806
(which is obtained from 262143-(2048 + 4096 + 8192 + 1)).
Example 2: If Method 2 is also desired in Example 1, then NASTRAN
MPYAD=247794 (which is obtained from 262143-(2048 +
4096 + 8192 + 8 + 4 + 1)).