User: rhaas Date: 2014/03/13 06:19 PM

Modified: /PITTNullCode/SphericalHarmonicReconGen/src/ read.cc

Log: SphericalHarmonicReconGen: Nicely terminate before we run out of data

rather than waiting for one more step (likely) and then aborting.

File Changes:

Directory: /PITTNullCode/SphericalHarmonicReconGen/src/ =======================================================

File [modified]: read.cc Delta lines: +36 -5 =================================================================== --- PITTNullCode/SphericalHarmonicReconGen/src/read.cc 2014-01-14 20:56:12 UTC (rev 117) +++ PITTNullCode/SphericalHarmonicReconGen/src/read.cc 2014-03-13 23:19:30 UTC (rev 118) @@ -22,10 +22,13 @@

using namespace std;

-extern "C" +namespace { - void load_modes(const CCTK_REAL time, const bool time_derivative_in_file, const bool allow_offcentered_time_stencils) + // returns true when the interpolation uses the last valid iteration in the file + bool load_modes(const CCTK_REAL time, const bool time_derivative_in_file, const bool allow_offcentered_time_stencils) { + // have we just read the last dataset from the files? + bool read_last_iteration = false; // identify iteration which corresponds to the time just before the target time "time" int iteration = SHR::C[0]->get_iteration(time + SHR::initial_time_in_file);

@@ -50,7 +53,11 @@ if (time_derivative_in_file) SHR::Ct[i]->set_modes_from_file(5-(k+2), iteration+k); } + for (int i=0; i < SHR::db.size(); ++i) + read_last_iteration |= (iteration+k == SHR::db[i]->n_timesteps()-1); } + + return read_last_iteration; }

void interpolate(const CCTK_REAL time, const int tl, const bool time_derivative_in_file) @@ -91,8 +98,11 @@ SHR::Ct[i]->interpolate_to_(tl, L); } } +}

+extern "C" +{ void SphericalHarmonicReconGeneric_SetTimeStep(CCTK_ARGUMENTS) { DECLARE_CCTK_ARGUMENTS; @@ -193,6 +203,14 @@ CCTK_INFO("Loading decomposed variables for current timestep..."); for (int i=0; i < 3*NUM_METRIC_COMPONENTS; ++i) { + if ((my_iteration+it_off) == SHR::db[i]->n_timesteps()-1) { // will run out in next step + static bool reported_done = false; + CCTK_TerminateNext(cctkGH); + if (!reported_done) { + CCTK_INFO("Done reading data from file."); + reported_done = true; + } + } if ((my_iteration+it_off) >= SHR::db[i]->n_timesteps()) CCTK_WARN(0, "The input file does not contain more iterations. Stopping."); } @@ -228,6 +246,7 @@ initial_time+cctk_time, initial_time+cctk_time+cctk_delta_time, initial_time+cctk_time+2*cctk_delta_time }; + bool read_last_iteration = false;

// If the automatically computed time-offset is disabled, // we allow for off-centered stencils at the beginning. @@ -241,14 +260,16 @@ if (time_fd_order == 2) for (int i=0; i < 3; ++i) { - load_modes(u[i], false, disable_auto_time_offset); + read_last_iteration |= + load_modes(u[i], false, disable_auto_time_offset); interpolate(u[i], 2-i, false); }

if (time_fd_order == 4) for (int i=0; i < 5; ++i) { - load_modes(u[i], false, disable_auto_time_offset); + read_last_iteration |= + load_modes(u[i], false, disable_auto_time_offset); interpolate(u[i], 4-i, false); } @@ -258,13 +279,23 @@ // just time interpolate coefficients to u[2]

// load all modes centered around time u[2] to internal "coeff_in_file" array... - load_modes(u[2], true, disable_auto_time_offset); + read_last_iteration |= + load_modes(u[2], true, disable_auto_time_offset);

// ...and use these coeffs to setup internal interpolated coeffs "coeff" // and copy obtained value to timelevel 0 interpolate(u[2], 0, true);

} + + // check if current interpolation used the last iteration in the file, then + // request termination so as to not run out of data. This may terminate a + // bit early if the last iteration can be used for more than one + // interpolation. + if (read_last_iteration) { // will (likely) run out in next step + CCTK_TerminateNext(cctkGH); + CCTK_INFO("Likely done reading data from file."); + }

}