Hi Paul,
    Thanks for reporting this. I suspect it may be caused by the 
buffering in the reference manager, and this provides a good test case 
for configuring it.

Stuart.

Paul Fisher wrote:
> Hi,
>
> I have constructed an Ondex workflow in Taverna 1.7.1, and ported it 
> to Taverna 2.1. I have now resolved the mis-match port depths that was 
> most annoying.
> I started to run it this morning, but it took 'ages' to complete the 
> iterations over a nested workflow compared to that of Taverna 1.7.1. 
> So, I turned off the provenance and closed the workbench. I then 
> restarted the workflow, using on-disk storage and caching (faster - 
> apparently) and re-ran it.
>
> At 3:30pm I stopped it as it still hadn't finished the 1st set of 
> nested workflow iterations and had resulted in a Out of Memory error.
> In Taverna 1.7.1 this same process takes 20 minutes and the whole 
> workflow completes. I can only assume that something is 'leaking 
> memory' at some point. Or something else is going wrong.
>
> I've also tried to run it in the nightly snapshot build but all I get 
> is an error being passed through.
>
> Any thoughts?
>
> regards,
> Paul.
>
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