trelliscoded probably meant bits in scratchpad, which are not accessible to the programmer. I read somewhere that those hidden bits may not be saved and regener

trelliscoded probably meant bits in scratchpad, which are not accessible to the programmer. I read somewhere that those hidden bits may not be saved and regenerated properly as part of cpu resuming execution of the program (task switching). I do not know if that can happen, but even if not, achieving consistency on subsequent runs is quite difficult - apparently one has to make sure the program and all libraries it uses were compiled with special compiler flags that prevent data alignment influencing results of FPU operations. https://software.intel.com/articles/consistency-of-floating-point-results-using-the-intel-compiler/ https://software.intel.com/articles/consistency-of-floating-...