slepc-3.12.2 2020-01-13
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# DSSetOptionsPrefix

Sets the prefix used for searching for all DS options in the database.

### Synopsis

    #include "slepcds.h"
    PetscErrorCode DSSetOptionsPrefix(DS ds,const char *prefix)

Logically Collective on ds

### Input Parameters

| ds | - the direct solver context
| prefix | - the prefix string to prepend to all DS option requests

### Notes

A hyphen (-) must NOT be given at the beginning of the prefix name. The first character of all runtime options is AUTOMATICALLY the hyphen.

### See Also

DSAppendOptionsPrefix()

Location: src/sys/classes/ds/interface/dsbasic.c
Index of all DS routines
Table of Contents for all manual pages
Index of all manual pages