HSTART: An improved initial step size routine for ODE codes
Technical Report
·
OSTI ID:7181915
For the solution of initial value ordinary differential equations by library quality solvers, such as the DEPAC collection in the SLATEC library, it is important to start off with a good initial step size in order for the procedure to produce a reliable and efficient solution numerically. A substantial improvement has been made in the starting step size algorithm which corrects a long standing deficiency. Specifically, initial step sizes many orders from optimal (arising from stiff problems with mixed zero and nonzero initial values of disparate sizes) are brought under control.
- Research Organization:
- Sandia National Labs., Albuquerque, NM (USA)
- DOE Contract Number:
- AC04-76DP00789
- OSTI ID:
- 7181915
- Report Number(s):
- SAND-86-2633; ON: DE87003965
- Country of Publication:
- United States
- Language:
- English
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