Learning Forum

[Todd Kelmar]

Hello, 

I have the following APDL script that I'm using to extract data from a transient analysis for postprocessing. 

The script seems to run very slow, taking far longer than the analysis  to complete. Is there a guide of best practices for handling large data sets in APDL or a more efficient way to get the info from ANSYS? 

/POST1
NSEL,S,LOC,Y, 0.0061
*GET, NUM_NODES, NODE, 0, COUNT,
*GET, NUM_STEPS, ACTIVE, 0, SOLU, NCMSS
filename = 'CHIRP_TEST'

*CFOPEN, filename, csv
*VWRITE, 'T', 'NODE', 'X','Y', 'Z', 'AY'
%C, %C, %C, %C, %C, %C
*CFCLOS
*CFOPEN, filename, csv, , append

*DO, i, 1, NUM_STEPS, 1

/PREP7
NSEL,S,LOC,Y, 0.0061
*GET, currn, NODE, 0, NUM, MIN
NODE = currn

*DO, j, 1, NUM_NODES, 1

NODE_NUM = currn
NODE_X = nx(currn)
NODE_Y = ny(currn)
NODE_Z = nz(currn)

/POST1
SET, 1, i
*GET, NODE_TIME, ACTIVE, 0, SET, TIME
*GET, NODE_AY, NODE, currn, A, Y

*VWRITE, NODE_TIME, NODE_NUM, NODE_X, NODE_Y, NODE_Z, NODE_AY
%e, %i, %e, %e, %e, %e

/PREP7
!Increment to next node
*GET, currn, NODE, currn, nxth,
!Select next node
NODE = currn

*ENDDO

*ENDDO

*CFCLOS

FINISH

Thanks!

[Aliaksei Trukhnou]

Hi. Sometimes if you run it in batch mode (from Mapdl launcher) it will be faster:) you need only before you text in your macros add "Resume" if you have db and rst files)