Dr. Zimmerman and company,

First of all, thank you for your efforts on MATPOWER and the continued support 
you provide.  It has been a wonderful tool to use.

I'm using the smartmarket module on a 240 bus system over many one-hour 
dispatch periods.  I recently ran this system for one week of simulation time 
(168 dispatch periods) and noticed that the computation time per period grows 
quadratically as the simulation progresses.  I've read the section of the 
manual on the uopf function (called by the smartmarket function) and it is not 
clear to me if this is expected behavior.  If it is, is there anyway to 
mitigate the growing computation time?

Trevor Hardy
Wichita State University

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