Hello, I am trying to learn CP2K, and I am stuck with an error that I cannot understand that looks like this: Trying to move ...wfn to ....wfn.bak-1. rename returned status: -1 The same error is repeated more than once Followed by a crash. forrtl: error (76): Abort trap signal I got the same error on a basic sample extracted from the CP2K test suite, as well as my actual work case. I am running cp2k.popt on a cluster with one or two nodes of 48 cores using Slurm. The crash happens at the end of the m_mov routine of src/base/machine_posix.f90. According to the POSIX manual, rename (the C version at least) always return -1, but the binding in the same file label the result code errno. Sadly, even assuming that it somewhat get the global errno (I don't know much about Fortran-C interop), -1 (or any unsigned equivalent of if) is not a valid errno value. I checked for permission problems, or size limits, but I don't see anything wrong with that. However, I think there might be more than one process trying to do the same m_mov concurrently, creating a race condition where some of them try to move a file that does not exist. So, I don't know what to do next to debug the issue. What is the relevant info on the MPI context in the output? <div>Could it be some library mismatch with the MPI implementation?</div><div>What should I check to make sure I am not misusing CP2K? </div> Best regards, Théo CAVIGNAC -- You received this message because you are subscribed to the Google Groups "cp2k" group. To unsubscribe from this group and stop receiving emails from it, send an email to <a href="mailto:cp2k+unsubscribe@googlegroups.com">cp2k+unsubscribe@googlegroups.com</a>. To view this discussion on the web visit <a href="https://groups.google.com/d/msgid/cp2k/3067c7b9-3dcd-4df2-8385-9cff35808347n%40googlegroups.com?utm_medium=email&utm_source=footer">https://groups.google.com/d/msgid/cp2k/3067c7b9-3dcd-4df2-8385-9cff35808347n%40googlegroups.com</a>.