Hello everybody, I am currently using the ALPS (v. 1.35) scheduler in my QMC code, and everything works pretty well. Nonetheless, I've experienced an error when trying to restart my simulations on a HPC machine : "failed to read array of type double from an IXDRDump" which doesn't allow me to restart any simulation... On the other hand, on other machines the simulations are correctly restarted. I therefore assume that the way I use to restart simulations is correct, i.e. I invoke something like mpirun ./myprogram.o simulation_name.out.xml , and that the dumping of the internal variables is done correctly in my code. I think the error message should be related to some machine-specific issue. Do you have suggestions for this problem? Thank you in advance, Giuseppe