/**
* @see PhysicalOperator::getOutputDistribution
*/
virtual ArrayDistribution getOutputDistribution(std::vector<ArrayDistribution> const& inputDistros,
std::vector< ArrayDesc> const& inputSchemas) const
{
if (haveAggregatesOrSynthetic(inputSchemas[0]) ||
isStrict()) {
return ArrayDistribution(psHashPartitioned);
}
return ArrayDistribution(psUndefined);
}
virtual ArrayDistribution getOutputDistribution(const std::vector<ArrayDistribution> & inputDistributions,
const std::vector< ArrayDesc> & inputSchemas) const
{ return ArrayDistribution(psScaLAPACK); }
/**
* Require that the input array is located entirely on instance 0.
*/
virtual DistributionRequirement getDistributionRequirement (const std::vector< ArrayDesc> & inputSchemas) const
{
vector<ArrayDistribution> requiredDistribution(1);
requiredDistribution[0] = ArrayDistribution(psLocalInstance, boost::shared_ptr<DistributionMapper>(), 0);
return DistributionRequirement(DistributionRequirement::SpecificAnyOrder, requiredDistribution);
}
virtual ArrayDistribution getOutputDistribution(
std::vector<ArrayDistribution> const&,
std::vector<ArrayDesc> const&) const
{
return ArrayDistribution(psLocalInstance);
}
