In order to this, invoker generation needs to be cached.
Performance impact on a warm-cache run of test_fmm.py from sumpy
Before
real 43.77 user 44.58 sys 2.96
After
real 37.08 user 37.73 sys 3.02
Closes #67 (closed)
Depends on pytools!12 (merged)
of instructions. This requires caching the generation of invokers (which itself should also give a speed boost), since invoker generation needed to analyze the instructions in the kernel.
