In reply to Fabrice.

Hi Fabrice,

Can you run CAS session statement as follows and see if the log says session using 4 worker nodes or 1 worker node !

Code:
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CAS mySession SESSOPTS=(CASLIB=casuser TIMEOUT=99 LOCALE="en_US" metrics=true);
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log:
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1 %studio_hide_wrapper;
82 CAS mySession SESSOPTS=(CASLIB=casuser TIMEOUT=99 LOCALE="en_US" metrics=true);
NOTE: The session MYSESSION connected successfully to Cloud Analytic Services intcas01.race.sas.com using port 5570. The UUID is
f1acc4e2-5805-0945-ac62-9bceb01ca608. The user is gatedemo001 and the active caslib is CASUSERHDFS(gatedemo001).
....
.......
NOTE: The session is using 4 workers.
....
................
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Regards,
-Uttam