Processes > Reactive transport modelling

PHAST Array allocation error

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**Olasz Tamas**:

Hi all,

when I am trying to run my PHAST modell (it completed runs already before, I put it aside for a few months), I get the following message:

array allocation failed: XP_init_thread

Any ideas what happened here?

Thanks,

Tamas

**dlparkhurst**:

It usually means that you ran out of memory. See if it runs with a coarser grid.

**Olasz Tamas**:

Thank you, it was actually a problem with the number of threads set to use. Now I have a convergence problem but thats a different issue.

**Olasz Tamas**:

Its me again. I was trying to work out the convergence error on my own but no luck. Even if I run my model with only distilled water, my model won't converge. I get the following messages:

Beginning transient simulation.

Beginning time step no. 1

Beginning solute-transport calculation.

H2O

H

O

Charge

C

Ca

Cl

K

N

Na

S

Number of iterations is too few (<2); check convergence tolerance

Number of iterations is too few (<2); check convergence tolerance

Number of iterations is too few (<2); check convergence tolerance

Number of iterations is too few (<2); check convergence tolerance

Number of iterations is too few (<2); check convergence tolerance

Number of iterations is too few (<2); check convergence tolerance

Number of iterations is too few (<2); check convergence tolerance

Number of iterations is too few (<2); check convergence tolerance

Number of iterations is too few (<2); check convergence tolerance

Number of iterations is too few (<2); check convergence tolerance

Number of iterations is too few (<2); check convergence tolerance

Beginning chemistry calculation.

Time rebalancing load 8.8e-006

Finished time step no. 1; Time .............................. 60.0000000 (s)

PHAST is closing due to an unhandled exception.

Do you have any suggestions about what to improve on? Thank you!

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