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Only commutative reductions can be parallelized #6609

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Feb 14, 2022
Merged

Only commutative reductions can be parallelized #6609

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4 changes: 2 additions & 2 deletions src/Func.cpp
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Original file line number Diff line number Diff line change
Expand Up @@ -368,9 +368,9 @@ void Stage::set_dim_type(const VarOrRVar &var, ForType t) {
// its identity for each value in the definition if it is a Tuple
const auto &prover_result = prove_associativity(func_name, args, values);

user_assert(prover_result.associative())
user_assert(prover_result.associative() && prover_result.commutative())
<< "Failed to call atomic() on " << name()
<< " since it can't prove associativity of the operator.\n";
<< " since it can't prove associativity or commutativity of the operator.\n";
internal_assert(prover_result.size() == values.size());
}
}
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