Iteration slows down process

Discussion created by patflo on Mar 29, 2012
Latest reply on Aug 31, 2012 by ahaas02
Hello i ve got a problem concerning the speed of my model.

Im doing the same 4 processes for about 500 times. First there is a  calculateValue which calculates the value of the index in the NEtDCF File, then I exctract from NETCDF and make a raster layer, then i do the zonal statistic as table and save the table as DBF file to the Harddisk. In the beginning my model took about 30 seconds for these 4 processes. NOw it takes more than a minute. i started it now for 4 times and it became slower and slower every time. Has anyone an idea how to solve this problem?

thanks in advance