miguelmorais
New member
Trying to solve a model with about one million DOF, but MARC stops saying that it is unable to allocate enough memory. The machine I'm using has 8Gb RAM and 300 Gb free disk space which I think is more than enough.
This is what the .out file says:
total workspace needed with in-core matrix storage = 247512445
part of solver workspace is allocated separately
general memory increasing from 59 MByte to 944 MByte
memory increase from 15490527 to 247512445 words failed
*** error: memory request of 247512445 failed during
sizing for operator matrix
memory usage: MByte words % of total
within general memory:
element stiffness matrices: 23 6108886 2.3
solver: first part 920 241281348 92.7
other: 0 122207 0.0
allocated separately:
nodal vectors: 218 57213557 22.0
defined sets: 0 11204 0.0
contact: 46 12008031 4.6
tyings: 0 38992 0.0
transformations: 2 486366 0.2
kinematic boundary conditions: 0 2792 0.0
tables: 0 54 0.0
points, curves and surfaces: 0 54 0.0
mem_none: 11 2939290 1.1
element storage: 629 164936624 63.4
material properties: 0 5731 0.0
executable and common blocks: 27 7000000 2.7
miscellaneous 0 11359 0.0
---------------------------------------------------------------
total: 992 260144581
general memory allocated: 59 15490527
general memory used: 944 247512441
failed memory allocation: 885 232021918
peak memory usage: 1000 262138742
the command line to call MARC is:
c:\msc.software\msc_nastran\msc2008\marc\\tools\run_marc -jid newm3h_2_cdb -v no -iam nanl -sdir c:/scratch
Any help appreciated
Miguel
This is what the .out file says:
total workspace needed with in-core matrix storage = 247512445
part of solver workspace is allocated separately
general memory increasing from 59 MByte to 944 MByte
memory increase from 15490527 to 247512445 words failed
*** error: memory request of 247512445 failed during
sizing for operator matrix
memory usage: MByte words % of total
within general memory:
element stiffness matrices: 23 6108886 2.3
solver: first part 920 241281348 92.7
other: 0 122207 0.0
allocated separately:
nodal vectors: 218 57213557 22.0
defined sets: 0 11204 0.0
contact: 46 12008031 4.6
tyings: 0 38992 0.0
transformations: 2 486366 0.2
kinematic boundary conditions: 0 2792 0.0
tables: 0 54 0.0
points, curves and surfaces: 0 54 0.0
mem_none: 11 2939290 1.1
element storage: 629 164936624 63.4
material properties: 0 5731 0.0
executable and common blocks: 27 7000000 2.7
miscellaneous 0 11359 0.0
---------------------------------------------------------------
total: 992 260144581
general memory allocated: 59 15490527
general memory used: 944 247512441
failed memory allocation: 885 232021918
peak memory usage: 1000 262138742
the command line to call MARC is:
c:\msc.software\msc_nastran\msc2008\marc\\tools\run_marc -jid newm3h_2_cdb -v no -iam nanl -sdir c:/scratch
Any help appreciated
Miguel
