John,

> Many people agree with you that it would be more useful to have the
> aggregate time.

So do i.

In the meantime, it would be ok for me to determine the cpu time of,
say, a Singular child process via the Singular timer. But apparently
this is non-trivial, according to this example:

sage: R=singular.ring(0,'(x(1..10))','dp')
sage: singular.eval('system(\"--ticks-per-sec\",100)')
''
sage: singular.eval('int t=timer')
''
sage: singular.eval('ideal G = maxideal(14)')
''
sage: singular.eval('timer-t')
'0'

When i do the same thing in Singular, the answer is not 0 but 35
(hence, 0.35s cpu-time).

Is there a way to access the Singular timer?

Yours
        Simon


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