Commit 1aa9092e authored by Oliver Zier's avatar Oliver Zier
Browse files

Add new swtich for entropy in ICs

parent e1df7dda
......@@ -109,6 +109,7 @@ DOUBLEPRECISION=1 # if activated and set to 1, use d
#---------------------------------------- Output/Input options
INITIAL_CONDITIONS_CONTAIN_ENTROPY
#OUTPUT_VELOCITY_GRADIENT # output velocity gradients
#OUTPUT_PRESSURE # output gas pressure
#OUTPUT_ENTROPY # output gas entropy
......
......@@ -598,6 +598,12 @@ formulation. This is only useful if `PRESSURE_ENTROPY_SPH` is used.
-------
**INITIAL_CONDITIONS_CONTAIN_ENTROPY**
The intial conditions file contains entropy instead of the thermal energy.
------
**GAMMA** = 1.4
Sets the equation of state index in the ideal gas law that is normally
......@@ -871,7 +877,6 @@ you need to increase `NUMBER_OF_MPI_LISTENERS_PER_NODE`.
Output/Input options {#io}
====================
**POWERSPEC_ON_OUTPUT**
Creates a power spectrum measurement for every output time, i.e. for
......
......@@ -97,7 +97,6 @@ struct global_data_all_processes : public parameters
double InitGasU; /**< the same, but converted to thermal energy per unit mass */
double MinEgySpec; /**< the minimum allowed temperature expressed as energy per unit mass */
int FlagICsContainedEntropy;
/* some force counters */
......
......@@ -415,11 +415,14 @@ void snap_io::read_ic(const char *fname)
Sp->NumPart += add_numpart;
#endif
All.FlagICsContainedEntropy = 0;
#ifdef GADGET2_HEADER
if(header.flag_entropy_instead_u)
All.FlagICsContainedEntropy = 1;
#ifndef INITIAL_CONDITIONS_CONTAIN_ENTROPY
if(header.flag_entropy_instead_u) Terminate("Initial condition file contains entropy, but INITIAL_CONDITIONS_CONTAIN_ENTROPY is not set\n");
#else
if(! header.flag_entropy_instead_u)Terminate("Initial condition file contains uthermal, but INITIAL_CONDITIONS_CONTAIN_ENTROPY is set\n");
#endif
#endif
TIMER_STOP(CPU_SNAPSHOT);
......
......@@ -129,7 +129,6 @@ void sim::init(int RestartSnapNum)
Mem.myfree(tmp);
All.FlagICsContainedEntropy = 0;
int count = 0;
for(int i = 0; i < Sp.NumPart; i++)
......@@ -477,15 +476,16 @@ void sim::init(int RestartSnapNum)
* Once the density has been computed, we can convert to entropy.
*/
#ifdef PRESSURE_ENTROPY_SPH
if(All.FlagICsContainedEntropy == 0)
#ifndef INITIAL_CONDITIONS_CONTAIN_ENTROPY
NgbTree.setup_entropy_to_invgamma();
#endif
#endif
double mass = 0;
for(int i = 0; i < Sp.NumGas; i++)
{
if(All.FlagICsContainedEntropy == 0)
{
#ifndef INITIAL_CONDITIONS_CONTAIN_ENTROPY
if(ThisTask == 0 && i == 0)
printf("INIT: Converting u -> entropy\n");
......@@ -493,8 +493,8 @@ void sim::init(int RestartSnapNum)
Sp.SphP[i].Entropy = GAMMA_MINUS1 * Sp.SphP[i].Entropy / pow(Sp.SphP[i].Density * All.cf_a3inv, GAMMA_MINUS1);
#endif
Sp.SphP[i].EntropyPred = Sp.SphP[i].Entropy;
}
#endif
/* The predicted entropy values have been already set for all SPH formulation */
/* so it should be ok computing pressure and csound now */
Sp.SphP[i].set_thermodynamic_variables();
......
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