[jira] [Created] (TRAFODION-602) LP Bug: 1366128 - CQD MAX_ESPS_PER_CPU_PER_OP should track faked hardware env

["Alice Chen (JIRA)" <ji...@apache.org>]

Alice Chen created TRAFODION-602:
------------------------------------

             Summary: LP Bug: 1366128 - CQD MAX_ESPS_PER_CPU_PER_OP should track faked hardware env
                 Key: TRAFODION-602
                 URL: https://issues.apache.org/jira/browse/TRAFODION-602
             Project: Apache Trafodion
          Issue Type: Bug
          Components: sql-cmp
            Reporter: Qifan Chen
            Assignee: Qifan Chen
            Priority: Critical


CQD MAX_ESPS_PER_CPU_PER_OP does not track a faked environment through the following CQDs.  Instead, it will take the value compute from the actual #cores of the machine. 

ARKCMP_FAKE_HW: to turn on the faked mode
PARALLEL_NUM_ESPS: # of faked cores per node
DEF_NUM_NODES_IN_ACTIVE_CLUSTERS: #faked nodes

Workaround:   set the CQD MAX_ESPS_PER_CPU_PER_OP  to the desired value via the formula: 2/(#faked cores).

Without the woraround , the #of cores used by the compiler is not accurate in the simulated/faked environment.



--
This message was sent by Atlassian JIRA
(v6.3.4#6332)