ENH: apply_where (migrate lazywhere from scipy)
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crusaderky
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Feb 10, 2025
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| if is_jax_namespace(xp): | ||
| # jax.jit does not support assignment by boolean mask | ||
| return xp.where(cond, f1(*args), f2(*args) if f2 is not None else fill_value) |
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JAX-on-dask is currently unsupported by Dask. This is here and not much higher above only for this reason.
We'll need to add explicit unit tests when it lands in the future.
crusaderky
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Feb 10, 2025
| ncond = ~cond | ||
| temp2 = f2(*(arr[ncond] for arr in args)) | ||
| out = xp.empty(cond.shape, dtype=dtype, device=device) | ||
| out = at(out, ncond).set(temp2) |
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JAX doesn't benefit from this at, but Sparse will (eventually)
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rgommers
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Thanks @crusaderky. Overall looks good, a few comments. Didn't test locally yet, will do once this is no longer Draft.
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This was referenced Mar 6, 2025
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would you like to move the discussion at #141 (comment) to an issue somewhere?
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@lucascolley all comments have been addressed |
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* ENH: apply_where (migrate _lazywhere from scipy) * Code review * merge main * tweak sparse skip
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Closes #14.
scipy._lib._utils.lazywhere, with revised UI and added support for jax.jit and Dask.