NgpAccessorExpr.hpp File Reference

Namespaces
namespace	mundy
namespace	mundy::mesh

Functions
Entity expression factories
template<typename ExecSpace = stk::ngp::ExecSpace>
auto	mundy::mesh::make_entity_expr (stk::mesh::BulkData &bulk_data, const stk::mesh::Selector &selector, const stk::mesh::EntityRank &rank, const ExecSpace &exec_space=ExecSpace())
	Create an entity expression for iterating over entities of a given rank in a selector.
template<typename PairView, typename FMIExtractor, typename ExecSpace = stk::ngp::ExecSpace>
auto	mundy::mesh::make_pairwise_entity_expr (stk::mesh::BulkData &bulk_data, const stk::mesh::EntityRank &left_rank, const stk::mesh::EntityRank &right_rank, const PairView &pair_view, const FMIExtractor &fmi_extractor, const ExecSpace &exec_space=ExecSpace())
	Create a pairwise entity expression for iterating over entity pairs defined by a pair view.
Value expressions
template<typename Func, typename... Args>
auto	mundy::mesh::apply_expr (Func func, const Args &... args)
	Build a read-only value expression by applying a function object to expression arguments.
Sink expressions
template<typename Arg>
auto	mundy::mesh::read_only (const Arg &arg)
	Wrap an argument as read-only for use with sink_expr().
template<typename Arg>
auto	mundy::mesh::read_write (const Arg &arg)
	Wrap an argument as read-write for use with sink_expr().
template<typename Arg>
auto	mundy::mesh::overwrite_all (const Arg &arg)
	Wrap an argument as overwrite-all for use with sink_expr().
template<typename Func, typename... Args>
void	mundy::mesh::sink_expr (Func func, const Args &... args)
	Apply a mutating function object to expression arguments, executing immediately. Builds the sink expression, drives it to completion, and returns void.
template<typename... Args>
auto	mundy::mesh::atomic_add (const Args &... args)
	Atomically add rhs to each element of the target expression.
template<typename... Args>
auto	mundy::mesh::atomic_sub (const Args &... args)
	Atomically subtract rhs from each element of the target expression.
template<typename... Args>
auto	mundy::mesh::atomic_mul (const Args &... args)
	Atomically multiply each element of the target expression by rhs.
template<typename... Args>
auto	mundy::mesh::atomic_div (const Args &... args)
	Atomically divide each element of the target expression by rhs.
RNG factory functions
template<typename SeedExpr, typename CounterExpr, typename RNGType = openrand::Philox, RNGType(*)(size_t, size_t) make_counter_based_rng = make_philox>
auto	mundy::mesh::rng (const SeedExpr &seed_expr, const CounterExpr &counter_expr)
	Create a counter-based random number generator using the given seed and counter. At least one of seed or counter must be an expression for this code to compile.
Fused assignment
template<typename... TrgSrcExprPairs>
void	mundy::mesh::fused_assign (const TrgSrcExprPairs &... exprs)
	Evaluate all RHS expressions before writing any LHS—simultaneous multi-target assignment in one kernel.
Reduction operations
template<typename Expr, typename ReductionOp>
void	mundy::mesh::reduce_local (Expr &&expr, ReductionOp &reduction)
	Reduces value of a given expression over all entities in the driver on this process.
template<typename Scalar, typename Expr>
auto	mundy::mesh::reduce_local_sum (Expr &&expr)
	Reduce sum (process local).
template<typename Scalar, typename Expr>
auto	mundy::mesh::reduce_local_max (Expr &&expr)
	Reduce max (process local).
template<typename Scalar, typename Expr>
auto	mundy::mesh::reduce_local_min (Expr &&expr)
	Reduce min (process local).
template<typename Scalar, typename Expr>
auto	mundy::mesh::all_reduce_sum (Expr &&expr)
	Reduces sum (all processes).
template<typename Scalar, typename Expr>
auto	mundy::mesh::all_reduce_max (Expr &&expr)
	Reduces max (all processes).
template<typename Scalar, typename Expr>
auto	mundy::mesh::all_reduce_min (Expr &&expr)
	Reduces min (all processes).