feat[next]: extend embedded implementation of premap()
#1501
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egparedes
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premap()
Co-authored-by: Hannes Vogt <[email protected]>
Co-authored-by: Hannes Vogt <[email protected]>
Co-authored-by: Hannes Vogt <[email protected]>
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I tried to fix all mentioned issued but there are still a couple of open points to discuss. Could you do another review pass? |
havogt
requested changes
May 14, 2024
src/gt4py/next/common.py
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| Examples: | ||
| >>> I, J = Dimension("I"), Dimension("J") | ||
| >>> domain = Domain(NamedRange(I, UnitRange(0, 10)), NamedRange(J, UnitRange(5, 15))) | ||
| >>> domain.slice_at[2, 2:5] |
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It might be confusing that slicing with int behaves different than for fields/arrays as it doesn't reduce rank. Any arguments pro this behavior?
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To avoid inconsistencies, slice_at now only accepts slices, not ints.
| new_domain = self.domain.replace(dim_idx, *new_ranges) | ||
| # Select actual implementation of the transformation | ||
| if not (conn_fields[0].kind & common.ConnectivityKind.TRANSFORM_DATA): | ||
| return _domain_premap(self, *conn_fields) |
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I think we had a test that didn't use the short-circuit path for Cartesian connectivity, but went through the expensive index->index mapping.
havogt
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May 16, 2024
egparedes
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premap()premap()
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Extend the implementation of the
premapfield operation (previously namedremap, conceptually equivalent to a Contravariant Functor'scontramap) to support more efficient implementations of different use cases depending on the contents of the connectivity field.Added
gt4py.eve: new typing aliases and minor utilitiesChanged
gt4py.next.common:Domainto support creation of subdomains via slicing using the.slice_atattribute. The actual implementation comes from the now deletedgt4py.next.embedded.nd_array_field._relative_ranges_to_domain()function.ConnectivityKindto represent all known use casesCartesianConnectivityto support translation and relocationsremaptopremapgt4py.next.embedded.nd_array_field:premap()(oldremap) and add usage documentation_hypercube()->_hyperslice(),_compute_mask_ranges()->_compute_mask_slices()Removed
gt4py.next.embedded.nd_array_field:_relative_ranges_to_domain()function moved to anDomainattribute ingt4py.next.common