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Operators written purely in Jax #968
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gcarleo
reviewed
Nov 3, 2021
This rule only works with operators which are written in jax. | ||
""" | ||
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def transition(self, _0, _1, _2, _3, key, x): |
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what are these 4 dummy arguments?
inailuig
commented
Nov 3, 2021
This rule only works with operators which are written in jax. | ||
""" | ||
|
||
def transition(self, _0, _1, _2, _3, key, x): |
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Suggested change
def transition(self, _0, _1, _2, _3, key, x): | |
def transition(self, sampler, machine, parameters, state, key, x): |
PhilipVinc
reviewed
Sep 24, 2022
This was referenced Jun 28, 2023
PhilipVinc
added a commit
that referenced
this pull request
Jul 2, 2023
This is also a remanding of the original PR by @wdphy16 , following the new infrastructure for Jax-compatible operators. resuscitates #968 @wdphy16 as you are the original author of the code, could you please go back through it and comment it throughout? It's very complicated and it's very hard to follow what the generation of masks do... --------- authored-by: Clemens Giuliani <clemens@inailuig.it>
inailuig
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Jul 4, 2023
This is what is left of #968 rebased on master. --------- Co-authored-by: Filippo Vicentini <filippovicentini@gmail.com>
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Currently the operators are written using numba for the very valid reason that the array shapes (number of connected elements) are in general data-dependent which is something not (yet?) supported by jax.
These operators can only be evaluated on the cpu, and are called either outside of a jax jit block or via numba4jax which has some overhead.
This PR adds a Ising operator with padding written in jax and a branchless, jax-jittable MetropolisSampler (I wanted some way to test the operator...) that runs fully on the gpu.
For Paulistrings the same can also be done easily (apart from the constructor).