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Transient Modflow model - Stress Periods


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Hello everyone,

I am building a transient MODFLOW model with GMS 7.0 using the conceptual model approach.

There is a huge problem with the number of stress periods I want to run :

- Until I've less than 1001 stress periods, MODFLOW runs, everything is ok

- If I have more than 1000 stress periods, MODFLOW aborts immediatly (I mean it is not a problem of convergence)

Hereunder the error message :

"Excutable started

.....

This file is not a GMS MF2K superfile. Assuming NAM file

......

ALLOCATION OF ARRAYS X, Z, IX AND XHS FAILED

RETURNED ERROR MESSAGE NUMBER : 41

MODFLOW 2000 finished"

I have made many many tests with my files and I have also tested it with entering the data manually directly in the Stress Priod box in Global Options.

Moreover, I don't understand because the option of output control "Enable saving of computed flows for all source sink object" is already unchecked...

Thanks in advance for any help !

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Hello all,

I realize it is been a number of years since this thread was last active, but I am running into a similar issue in SEAWAT V4. I need ~35,000 stress periods and it appears the max number of stress periods in SEAWAT is 10,000. I'm receiving the error below. Does anyone know where I can increase the number of allowable stress periods in the SEAWAT source code so that it can be recompiled to accept a larger number of stress periods? I'm modeling tides, so many stress periods are needed to resolve the tidal signal over a year.

 **** STRESS PERIOD(S) IN SIMULATION
 THE MAXIMUM NUMBER OF STRESS PERIODS IS:10000

Thank you.

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