[varispeed]

This can be used with a client-server model, that is if there are enough free cells and I/O available on FPGA it could let it install the configuration and then any application could communicate with it concurrently, maybe with some basic auth.

[Someone]

But from what I understand of FPGAs, fragmentation would be a serious issue. You may have the free cells and I/O you need to implement some circuit, but if they’re dispersed over your FPGA or even connected, but in the wrong shape for the circuit you’re building, that’s useless.

An enormous crossbar could solve that, but I would think that would be way too costly, if practically possible at all.