Generic COUPLED SOURCE interpreter: postfix bytecode evaluated on device (P5 phase 1). More...

#include <pops/core/foundation/types.hpp>
#include <pops/mesh/storage/fab2d.hpp>
#include <cassert>
#include <cmath>

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Classes
struct	pops::CsProgram
	Fixed-capacity postfix program (POD device-copyable): len opcodes, arg read only by PushReg (register index). More...

struct	pops::CoupledSourceKernel
	Device functor applying ONE coupled source over a box: captures the PODs by VALUE (input/output Array4, programs, constants) -> device-clean. More...

struct	pops::CoupledFreqKernel

Namespaces
namespace	pops

Enumerations
enum class	pops::CsOp : int { pops::PushReg = 0 , pops::Add = 1 , pops::Sub = 2 , pops::Mul = 3 , pops::Div = 4 , pops::Neg = 5 , pops::Pow = 6 , pops::Sqrt = 7 }
	Opcodes of the postfix stack machine. More...

Variables
constexpr int	pops::kCsMaxReg = 32

constexpr int	pops::kCsMaxStack = 32

constexpr int	pops::kCsMaxProg = 256

constexpr int	pops::kCsMaxTerms = 16

Detailed Description

Generic COUPLED SOURCE interpreter: postfix bytecode evaluated on device (P5 phase 1).

For an ARBITRARY coupling described on the Python side (pops.dsl.CoupledSource), we want NEITHER to generate one .so per coupling, NOR one Python callback per cell. So we transport the symbolic expression as postfix (stack) BYTECODE to evaluate inside the SAME for_each_cell device kernel as the named couplings. The bytecode (CsProgram) is a FIXED-CAPACITY POD: capturable by value in a device kernel (like an Array4); the evaluator (CoupledSourceKernel) is a NAMED FUNCTOR (no extended lambda) -> device-clean. Per-cell registers: r[0..n_in-1] = input fields, r[n_in..] = constants. Output writes are ADDITIVE (forward-Euler split). The capacities (kCsMaxReg, kCsMaxStack, kCsMaxProg, kCsMaxTerms) bound the stack/registers; an overflow raises an error on the Python side BEFORE the device.

include/pops/coupling/source/coupled_source_program.hpp File Reference¶

Classes

Namespaces

Enumerations

Variables

Detailed Description