Out-Of-Core Solvers In an out-of-core problem the entire amount of data does not fit in the local main memory of a processor and must be stored on disk Needed only if the os does not support virtual memoryOut-Of-Core Solvers • In an out-of-core problem the entire amount of data does not fit in the local main memory of a processor and must be stored on disk. – Needed only if the OS does not support virtual memory