Re: [Opm] flow: Usage of restart utility

[Joakim Hove]

>
>
> My open question is, what is meant by time step. I assume that this is
> the simulation step number in the ouput of flow.



OK;

this is my mental picture of the timeline in an ECLIPSE simulation:


X  : Report step - given with the DATES or TSTEP kewyord in the Schedule
section of the input file.
 |  :  A timestep chosen by the adaptive timestep algorithm

X---|--||---|--X--|---||-X|X
[](]( ]( ]
0  1 2 3

This is a simulation with three report steps 1,2 & 3 and in addition there
is an initial report step 0 which only contains the initial equilibrium
solution. Observe the half open intervals (...] indicated under the
timeline, there we see that the results which 'happen'  in the timeinterval
(R-1,R] are attached to report step R - but the report step 0 is a
singularity - spanning the time interval [0,0]. Understanding these
intervals is most important when it comes to summary files, where we have
results for all simulator timesteps - but they are "attached" to report
steps as indicated above.

All IO configuration is in terms of report steps, so the comment
s
you
linked to are unfortunately misleading - every single[1] occurence of
'timestep' in the RPTRST configuration should be replaced with REPORT STEP.

HTH - Joakim

 [1]: Of course - there is always an exception, there  is a RPTRST setting
( Ithink it is BASIC=6) which will actually get utput for every simulator
timestep - that is not supported in flow.
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Re: [Opm] flow: Usage of restart utility

[Joakim Hove]

>
>
> OK;
>
>
> this is my mental picture of the timeline in an ECLIPSE simulation:
>
>
> X  : Report step - given with the DATES or TSTEP kewyord in the Schedule
> section of the input file.
>  |  :  A timestep chosen by the adaptive timestep algorithm
>
> X---|--||---|--X--|---||-X|X
> [](]( ]( ]
> 0  1 2 3
>


OK - that probably did not line up perfectly in your email - client; the
lines should be aligned so that the square braces come immediately below
the report step indicators (X), and the numbers 1,2,3 should come right
beneath that again.

Sorry for the spam.
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