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Comments (3)

tianjuxue avatar tianjuxue commented on September 6, 2024

It'd be better if you also prepare some small examples that actually demand these proposed changes. Thanks!

from jax-am.

SNMS95 avatar SNMS95 commented on September 6, 2024

Sure! Just to give a heads up.

It is related to making use of hessian-vector products (with forward over reverse autodiff).
I believe that easy access to HVPs is an important capability over traditional hand-written sensitivity analysis.
They would be useful in optimization, analysis and in solving!

Plus, once we delve into more of ML, e.g. meta-learning of some sort, being able to differentiate through a optimization becomes important (as done in JAXOpt)

from jax-am.

SNMS95 avatar SNMS95 commented on September 6, 2024

PETSc solver seems to be broken. The following code,

solver(problem, linear=True, use_petsc=True)

, results in an error

TypeError: Cannot cast array data from dtype('int64') to dtype('int32') according to the rule 'safe'

image

from jax-am.

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