Hi Robert you're absolutely wrong.You have made Houdini ONLY for Intel " i " and AMD processors.This is the problem why the speed is much,much slower on Intel QX Skulltraills and Intel Xenons 8 threads.
The User make since months tests with the most compiles of the Ippolit family and has never such ...

If this processor is a double quad core with shared memory, the memory contention of the spin locks could absolutely kill the performance.
For this kind of architecture the "lockless hashing" promoted by Bob Hyatt should be used. I have since long coded the hashless locking in Houdini, but haven't ...