Since we had troubles compiling the Lustre source on our CentOS distribution with Infiniband, we installed the prepatched kernel. Poorly this kernel does not have the Perfctr patch enabling measure of hardware performance with PAPI (http://icl.cs.utk.edu/papi/) Can we expect, in a near future, that the Perfctr patch will be added to the kernel available from Lustre? Steve Allen HPC Analyst CCS, RQCHP Universite de Sherbrooke