File size: 963 Bytes
32d1b4a | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 | """Retain bounded compiled attention executables across global JAX cache clears."""
from collections import OrderedDict
import jax
class PersistentCompiled:
def __init__(self,function,max_executables=2):
self.function=jax.jit(function);self.executables=OrderedDict();self.max_executables=max_executables;self.compilations=0
def __call__(self,*args):
leaves,tree=jax.tree_util.tree_flatten(args)
signatures=[]
for value in leaves:
abstract=jax.core.get_aval(value)
signatures.append((abstract.shape,str(abstract.dtype),bool(abstract.weak_type)))
key=(tree,tuple(signatures))
if key not in self.executables:
self.executables[key]=self.function.lower(*args).compile();self.compilations+=1
while len(self.executables)>self.max_executables:self.executables.popitem(last=False)
self.executables.move_to_end(key)
return self.executables[key](*args)
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