Which was used: CAS server or SPRE server in SAS Viya?

jcz — Mon, 12 Aug 2019 13:27:45 GMT

We have just implemented Viya 3.4 in a Linux Cluster. One of our trainers asked me this:

How do we know whether a program runs on CAS server or SPRE server in SAS Viya?

Is there an indication in the log that explicitly shows where a particular a step was run?

--jcz

Re: Which was used: CAS server or SPRE server in SAS Viya?

Rick_SAS — Wed, 14 Aug 2019 18:35:19 GMT

Yes, many procedures display a note, However, I don't think there is any strict rule about it, so some CAS-enabled procedures might not write a note.

For the DATA step, the log will display a WARNING such as

WARNING: Running DATA step in the SAS client.

if it had to pull data back from a CAS table.

A few procedures can run in either location (client or server), depending on where the data are. Some CAS-enabled procedures will output a note (such as this one from PROC MEANS) if they run in CAS:

NOTE: The CAS aggregation.aggregate action will be used to perform the
initial summarization.

If they run on the SAS client, you usually don't get a note.

Some of the CAS-enabled procedures will write a note to the log, such as this note from PROC REGSELECT:

NOTE: The Cloud Analytic Services server processed the request in 0.179464
seconds.

topic Which was used: CAS server or SPRE server in SAS Viya? in SAS Programming

Which was used: CAS server or SPRE server in SAS Viya?

Re: Which was used: CAS server or SPRE server in SAS Viya?