Section: New Results

Management of heterogeneous and non-volatile memories in HPC

The emergence of non-volatile memory that may be used either as fast storage or slow high-capacity memory brings many opportunities for application developers.

We studied the impact of those new technologies on the allocation of resources in HPC platforms. We showed that co-scheduling HPC applications will possibly different needs in term of storage and memories brings constraints of the way non-volatile memory should be exposed by the hardware and operating system to bring both flexibility and performance. [21]

We also worked with Lawrence Livermore National Lab to propose an API to help application choose between the different kinds of available memory (high-bandwidth (HBM), normal (DDR), slow (non-volatile)). We exposed several useful criteria for selecting target memories as well as ways to rank them. [22]