TSMonitorSPEigCtxCreate#

Creates a context for use with TS to monitor the eigenvalues of the linearized operator

Synopsis#

#include "petscts.h"  
PetscErrorCode TSMonitorSPEigCtxCreate(MPI_Comm comm, const char host[], const char label[], int x, int y, int m, int n, PetscInt howoften, TSMonitorSPEigCtx *ctx)

Collective

Input Parameters#

  • comm - the communicator to share the monitor

  • host - the X display to open, or NULL for the local machine

  • label - the title to put in the title bar

  • x - the horizontal screen coordinates of the upper left coordinate of the window

  • y - the vertical coordinates of the upper left coordinate of the window

  • m - the screen width in pixels

  • n - the screen height in pixels

  • howoften - if positive then determines the frequency of the plotting, if -1 then only at the final time

Output Parameter#

  • ctx - the context

Options Database Key#

  • -ts_monitor_sp_eig - plot egienvalues of linearized right-hand side

Notes#

Use TSMonitorSPEigCtxDestroy() to destroy the context

Currently only works if the Jacobian is provided explicitly.

Currently only works for ODEs u_t - F(t,u) = 0; that is with no mass matrix.

See Also#

TS: Scalable ODE and DAE Solvers, TSMonitorSPEigTimeStep(), TSMonitorSet(), TSMonitorLGSolution(), TSMonitorLGError()

Level#

intermediate

Location#

src/ts/interface/tseig.c

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