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prometeo_cfl.hpp
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prometeo_cfl.hpp
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// Copyright (c) "2019, by Stanford University
// Developer: Mario Di Renzo
// Affiliation: Center for Turbulence Research, Stanford University
// URL: https://ctr.stanford.edu
// Citation: Di Renzo, M., Lin, F., and Urzay, J. (2020).
// HTR solver: An open-source exascale-oriented task-based
// multi-GPU high-order code for hypersonic aerothermodynamics.
// Computer Physics Communications 255, 107262"
// All rights reserved.
//
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions are met:
// * Redistributions of source code must retain the above copyright
// notice, this list of conditions and the following disclaimer.
// * Redistributions in binary form must reproduce the above copyright
// notice, this list of conditions and the following disclaimer in the
// documentation and/or other materials provided with the distribution.
//
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
// ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
// WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
// DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER BE LIABLE FOR ANY
// DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
// (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
// LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
// ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
// SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
#ifndef __PROMETEO_CFL_HPP__
#define __PROMETEO_CFL_HPP__
#include "legion.h"
using namespace Legion;
//-----------------------------------------------------------------------------
// LOAD PROMETEO UTILITIES AND MODULES
//-----------------------------------------------------------------------------
#include "task_helper.hpp"
#include "PointDomain_helper.hpp"
#include "prometeo_types.h"
#include "prometeo_cfl.h"
//-----------------------------------------------------------------------------
// TASK THAT COMPUTES THE CFL NUMBER
//-----------------------------------------------------------------------------
#ifndef __CUDACC__
using std::max;
using std::min;
#endif
class CalculateMaxSpectralRadiusTask {
public:
struct Args {
uint64_t arg_mask[1];
LogicalRegion Fluid;
Mix mix;
FieldID Fluid_fields [FID_last - 101];
};
public:
static const char * const TASK_NAME;
static const int TASK_ID;
static const bool CPU_BASE_LEAF = true;
static const bool GPU_BASE_LEAF = true;
static const int MAPPER_ID = 0;
private:
__CUDA_H__
static inline double CalculateConvectiveSpectralRadius(const Vec3 &velocity,
const double SoS,
const double dcsi,
const double deta,
const double dzet) {
double r = (fabs(velocity[0]) + SoS)*dcsi;
r = max(r, (fabs(velocity[1]) + SoS)*deta);
r = max(r, (fabs(velocity[2]) + SoS)*dzet);
return r;
};
__CUDA_H__
static inline double CalculateViscousSpectralRadius(const double rho,
const double mu,
const double dcsi,
const double deta,
const double dzet) {
const double nu = mu/rho;
double r = nu*dcsi*dcsi;
r = max(r, nu*deta*deta);
r = max(r, nu*dzet*dzet);
r *= 4;
return r;
};
__CUDA_H__
static inline double CalculateHeatConductionSpectralRadius(const double temperature,
const VecNSp &MassFracs,
const double rho,
const double lam,
const double dcsi,
const double deta,
const double dzet,
const Mix &mix) {
const double cp = mix.GetHeatCapacity(temperature, MassFracs);
const double DifT = lam/(cp*rho);
double r = DifT*dcsi*dcsi;
r = max(r, DifT*deta*deta);
r = max(r, DifT*dzet*dzet);
r *= 4;
return r;
};
__CUDA_H__
static inline double CalculateSpeciesDiffusionSpectralRadius(const VecNSp &Di,
const double dcsi,
const double deta,
const double dzet) {
double r = 0.0; // Spectral radius cannot be lower than 0
for (int s = 0; s < nSpec; s++) {
r = max(r, Di[s]*dcsi*dcsi);
r = max(r, Di[s]*deta*deta);
r = max(r, Di[s]*dzet*dzet);
}
r *= 4;
return r;
};
#if (defined(ELECTRIC_FIELD) && (nIons > 0))
__CUDA_H__
static inline double CalculateSpeciesDriftSpectralRadius(const Vec3 &eField,
const VecNIo &Ki,
const double dcsi,
const double deta,
const double dzet) {
double r = fabs(eField[0])*dcsi;
r = max(r, fabs(eField[1])*deta);
r = max(r, fabs(eField[2])*dzet);
// Compute the maximum electric mobility
double Kimax = 0.0;
__UNROLL__
for (int i = 0; i < nIons; i++)
Kimax = max(Kimax, Ki[i]);
r *= Kimax;
return r;
};
#endif
public:
__CUDA_H__
static inline double CalculateMaxSpectralRadius(const AccessorRO<double, 3> &dcsi,
const AccessorRO<double, 3> &deta,
const AccessorRO<double, 3> &dzet,
const AccessorRO<double, 3> &temperature,
const AccessorRO<VecNSp, 3> &MassFracs,
const AccessorRO< Vec3, 3> &velocity,
const AccessorRO<double, 3> &rho,
const AccessorRO<double, 3> &mu,
const AccessorRO<double, 3> &lam,
const AccessorRO<VecNSp, 3> &Di,
const AccessorRO<double, 3> &SoS,
#if (defined(ELECTRIC_FIELD) && (nIons > 0))
const AccessorRO<VecNIo, 3> &Ki,
const AccessorRO< Vec3, 3> &eField,
#endif
const Point<3> &p,
const Mix &mix) {
double r = CalculateConvectiveSpectralRadius(velocity[p], SoS[p], dcsi[p], deta[p], dzet[p]);
r = max(r, CalculateViscousSpectralRadius(rho[p], mu[p], dcsi[p], deta[p], dzet[p]));
r = max(r, CalculateHeatConductionSpectralRadius(temperature[p], MassFracs[p],
rho[p], lam[p],
dcsi[p], deta[p], dzet[p], mix));
r = max(r, CalculateSpeciesDiffusionSpectralRadius(Di[p], dcsi[p], deta[p], dzet[p]));
#if (defined(ELECTRIC_FIELD) && (nIons > 0))
r = max(r, CalculateSpeciesDriftSpectralRadius(eField[p], Ki[p], dcsi[p], deta[p], dzet[p]));
#endif
return r;
}
public:
static double cpu_base_impl(const Args &args,
const std::vector<PhysicalRegion> ®ions,
const std::vector<Future> &futures,
Context ctx, Runtime *runtime);
#ifdef LEGION_USE_CUDA
static DeferredValue<double> gpu_base_impl(const Args &args,
const std::vector<PhysicalRegion> ®ions,
const std::vector<Future> &futures,
Context ctx, Runtime *runtime);
#endif
};
#endif // __PROMETEO_CFL_HPP__