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+ Starvation is still an issue, but adding a slight bit of randomness
seems to help a bit. Also, simulating massive systems like 64x64 is a
bit too slow, so scale grid example down to 16x16. 256 cores is still
a fair bit, but I might try to think of some optimization methods.
I wonder at what point threading becomes faster than just running on a
single core?
+ Test now also sets processor nodes to sleep to avoid starvation issue,
seems like an opportunity for a DoS attack if someone can get enough
cores to bombard a single node with enough traffic.
The riscv64 processor has an initial control interface, very messy
code, should probably come up with a more elegant way to deal with
sleep/wakeups
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