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Using vichydro setting in CLM4.0

Hello,I'm currently trying to use the VIC hydro parameterizations in CLM4.0 (in CESM1.2).  In order to do this, I applied the following flag...

 value="-vichydro on -phys clm4_0"

...within the "CLM_CONFIG_OPTS" in the env_build.xml file of my test case.  Is this the only place within a test case that needs to be modified to allow for VIC parameterizations?The test case built succesfully and is running stably on our local server; however, the throughput (with 480 processors) is drastically slower than our usual runtime...Current throughput (with VIC parameterizations) - 1 daily simulted/2 hours real time Usual throughput (without VIC parameterizations) - 1 daily simulated/6 minutes real time*NOTE - both simulations are using the same namelistThanks in advance for any insights you might have!All the best,AR
 
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