An Empirical Study of Cryptographic Libraries for MPI Communications

摘要: As High Performance Computing (HPC) applications with data security requirements are increasingly moving to execute in the public cloud, there is a demand that cloud infrastructure for HPC should support privacy and integrity. Incorporating integrity mechanisms communication of today’s challenging because recent advances networking centers have shifted bottleneck from network links end points encryption computationally intensive.In this work, we consider incorporating Message Passing Interface (MPI) library, which widely used applications. We empirically study four contemporary cryptographic libraries, OpenSSL, BoringSSL, Libsodium, CryptoPP using micro-benchmarks NAS parallel benchmarks evaluate their overheads encrypting MPI messages on two different technologies, 10Gbps Ethernet 40Gbps InfiniBand. The results indicate (1) performance differs drastically across (2) effectively supporting communications high speed center networks challenging—even most efficient can still introduce very significant some scenarios such as single operation InfiniBand, but (3) overall overhead may not be prohibitive practical uses since multiple concurrent communications.