After I switch iparm(27) on, I can see the message that parallel factorization control cannot be used when OOC is enabled.
I have a question here. Does it mean that if I set iparm(60) = 1, iparm(24) have to be set to 0 ? I am refereing to the parameter table here: http://software.intel.com/en-us/node/398339
I did execute your code but looking at the input parameters I can see you want to use the partial solving ( iparm ) which is not avaliable for OOC mode. You can find the Note about that into Pardiso's doc.