Wind64 -

: Creates a virtual "sandbox" that allows old 32-bit DLLs to communicate with your 64-bit software.

Linear scaling rarely holds beyond 1,000 cores. Wind64 solvers suffer from communication bottlenecks on the interconnect. Using InfiniBand EDR (100 Gbps) versus standard 10GbE can mean the difference between 80% parallel efficiency and 20% efficiency. Many organizations mistakenly buy high-core-count machines without upgrading their network fabric, then complain that Wind64 "doesn't work." wind64