decaygen Namespace Reference

Functions
def	genfiles (nucs, short=1e-16, small=1e-16, sf=False, dummy=False, debug=False)
def	genchains (chains, sf=False)
def	almost_stable (hl_i, k_i)
def	almost_stable_mask (hl, k)
def	k_from_hl_stable (hl, gamma, outerdiff, outerzeros)
def	k_almost_stable (hl, a, gamma, asmask)
def	k_from_hl_unstable (hl, gamma, outerdiff, outerzeros)
def	k_almost_unstable (hl, a, gamma, asmask)
def	k_filter (k, t_term, small=1e-16)
def	hl_filter (hl, short=1e-16)
def	hl_degeneracy (hl, k, a, outerzeros)
def	k_a_from_hl (chain, short=1e-16, small=1e-16)
def	kbexpr (k, b)
def	ensure_cse (a_i, b, cse)
def	b_from_a (cse, a_i)
def	chainexpr (chain, cse, b, bt, short=1e-16, small=1e-16)
def	gencase (nuc, idx, b, short=1e-16, small=1e-16, sf=False, debug=False)
def	elems (nucs)
def	gencases (nucs, debug=False)
def	genelemfuncs (nucs, short=1e-16, small=1e-16, sf=False, debug=False)
def	load_default_nucs ()
def	build_tarfile (ns)
def	write_if_diff (filename, contents)
def	build (hdr='decay.h', src='decay.cpp', nucs=None, short=1e-16, small=1e-16, sf=False, dummy=False, debug=False)
def	assemble (ns, compiler, toolchain)
def	main ()

Variables
	ENV = jinja2.Environment(undefined=jinja2.StrictUndefined)
string	autogenwarn
	HEADER = ENV.from_string(.strip())
	SOURCE = ENV.from_string(.strip())
	ELEM_FUNC = ENV.from_string(.strip())
string	BREAK = ' break;'
string	CHAIN_STMT = ' out[{0}] += {1};'
string	CHAIN_EXPR = '(it->second) * ({0})'
string	EXP_EXPR = 'exp2({a:.17e}*t)'
string	KEXP_EXPR = '{k:.17e}*' + EXP_EXPR
string	B_STMT = 'double b{b} = {exp};'
string	B_EXPR = 'b{b}'
string	KB_EXPR = '{k:.17e}*' + B_EXPR

Detailed Description

This file generates a static C++ decayer function for use with PyNE.
It is suppossed to be fast.

Function Documentation

almost_stable()

def decaygen.almost_stable	(		hl_i,
			k_i
	)

Tells whether a nuclide is almost stable

almost_stable_mask()

def decaygen.almost_stable_mask	(		hl,
			k
	)

Elementwise mask for whether a nuclide is almost stable

assemble()

def decaygen.assemble	(		ns,
			compiler,
			toolchain
	)

Assembles the solver. Returns the filename that was generated.

hl_degeneracy()

def decaygen.hl_degeneracy	(		hl,
			k,
			a,
			outerzeros
	)

Handles degeneracys in half-lives.

write_if_diff()

def decaygen.write_if_diff	(		filename,
			contents
	)

Only writes the file if it is different. This prevents touching the file needlessly.

Variable Documentation

autogenwarn

string decaygen.autogenwarn

Initial value:

=  """
// !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
// !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
//              WARNING
// This file has been auto generated
// Do not modify directly. You have
// been warned. This is that warning
// !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
// !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
""".strip()