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prometeo_variables.cu
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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.
#include "prometeo_variables.hpp"
#include "cuda_utils.hpp"
// Declare a constant memory that will hold the Mixture struct (initialized in prometeo_mixture.cu)
extern __device__ __constant__ Mix mix;
//-----------------------------------------------------------------------------
// KERNELS FOR UpdatePropertiesFromPrimitiveTask
//-----------------------------------------------------------------------------
__global__
void UpdatePropertiesFromPrimitive_kernel(const AccessorRO<double, 3> pressure,
const AccessorRO<double, 3> temperature,
const AccessorRO<VecNSp, 3> MolarFracs,
const AccessorRO< Vec3, 3> velocity,
const AccessorWO<VecNSp, 3> MassFracs,
const AccessorWO<double, 3> rho,
const AccessorWO<double, 3> mu,
const AccessorWO<double, 3> lam,
const AccessorWO<VecNSp, 3> Di,
const AccessorWO<double, 3> SoS,
#if (defined(ELECTRIC_FIELD) && (nIons > 0))
const AccessorWO<VecNIo, 3> Ki,
#endif
const Rect<3> my_bounds,
const coord_t size_x,
const coord_t size_y,
const coord_t size_z)
{
int x = blockIdx.x * blockDim.x + threadIdx.x;
int y = blockIdx.y * blockDim.y + threadIdx.y;
int z = blockIdx.z * blockDim.z + threadIdx.z;
if ((x < size_x) && (y < size_y) && (z < size_z)) {
const Point<3> p = Point<3>(x + my_bounds.lo.x,
y + my_bounds.lo.y,
z + my_bounds.lo.z);
// Mixture check
assert(mix.CheckMixture(MolarFracs[p]));
UpdatePropertiesFromPrimitiveTask::UpdateProperties(
pressure, temperature, MolarFracs, velocity,
MassFracs,
rho, mu, lam, Di, SoS,
#if (defined(ELECTRIC_FIELD) && (nIons > 0))
Ki,
#endif
p, mix);
}
}
__host__
void UpdatePropertiesFromPrimitiveTask::gpu_base_impl(
const Args &args,
const std::vector<PhysicalRegion> ®ions,
const std::vector<Future> &futures,
Context ctx, Runtime *runtime)
{
assert(regions.size() == 2);
assert(futures.size() == 0);
// Accessors for primitive variables
const AccessorRO<double, 3> acc_pressure (regions[0], FID_pressure);
const AccessorRO<double, 3> acc_temperature (regions[0], FID_temperature);
const AccessorRO<VecNSp, 3> acc_MolarFracs (regions[0], FID_MolarFracs);
const AccessorRO< Vec3, 3> acc_velocity (regions[0], FID_velocity);
const AccessorWO<VecNSp, 3> acc_MassFracs (regions[1], FID_MassFracs);
// Accessors for properties
const AccessorWO<double, 3> acc_rho (regions[1], FID_rho);
const AccessorWO<double, 3> acc_mu (regions[1], FID_mu);
const AccessorWO<double, 3> acc_lam (regions[1], FID_lam);
const AccessorWO<VecNSp, 3> acc_Di (regions[1], FID_Di);
const AccessorWO<double, 3> acc_SoS (regions[1], FID_SoS);
#if (defined(ELECTRIC_FIELD) && (nIons > 0))
const AccessorWO<VecNIo, 3> acc_Ki (regions[1], FID_Ki);
#endif
// Extract execution domains
Rect<3> r_Fluid = runtime->get_index_space_domain(ctx, regions[1].get_logical_region().get_index_space());
// Launch the kernel
const int threads_per_block = 256;
const dim3 TPB_3d = splitThreadsPerBlock<Xdir>(threads_per_block, r_Fluid);
const dim3 num_blocks_3d = dim3((getSize<Xdir>(r_Fluid) + (TPB_3d.x - 1)) / TPB_3d.x,
(getSize<Ydir>(r_Fluid) + (TPB_3d.y - 1)) / TPB_3d.y,
(getSize<Zdir>(r_Fluid) + (TPB_3d.z - 1)) / TPB_3d.z);
UpdatePropertiesFromPrimitive_kernel<<<num_blocks_3d, TPB_3d>>>(
acc_pressure, acc_temperature, acc_MolarFracs,
acc_velocity, acc_MassFracs,
acc_rho, acc_mu, acc_lam, acc_Di, acc_SoS,
#if (defined(ELECTRIC_FIELD) && (nIons > 0))
acc_Ki,
#endif
r_Fluid, getSize<Xdir>(r_Fluid), getSize<Ydir>(r_Fluid), getSize<Zdir>(r_Fluid));
}
//-----------------------------------------------------------------------------
// KERNELS FOR UpdateConservedFromPrimitiveTask
//-----------------------------------------------------------------------------
__global__
void UpdateConservedFromPrimitive_kernel(const AccessorRO<VecNSp, 3> MassFracs,
const AccessorRO<double, 3> temperature,
const AccessorRO< Vec3, 3> velocity,
const AccessorRO<double, 3> rho,
const AccessorWO<VecNEq, 3> Conserved,
const Rect<3> my_bounds,
const coord_t size_x,
const coord_t size_y,
const coord_t size_z)
{
int x = blockIdx.x * blockDim.x + threadIdx.x;
int y = blockIdx.y * blockDim.y + threadIdx.y;
int z = blockIdx.z * blockDim.z + threadIdx.z;
if ((x < size_x) && (y < size_y) && (z < size_z)) {
const Point<3> p = Point<3>(x + my_bounds.lo.x,
y + my_bounds.lo.y,
z + my_bounds.lo.z);
// Mixture check
assert(mix.CheckMixture(MassFracs[p]));
UpdateConservedFromPrimitiveTask::UpdateConserved(
MassFracs, temperature, velocity,
rho, Conserved,
p, mix);
}
}
__host__
void UpdateConservedFromPrimitiveTask::gpu_base_impl(
const Args &args,
const std::vector<PhysicalRegion> ®ions,
const std::vector<Future> &futures,
Context ctx, Runtime *runtime)
{
assert(regions.size() == 2);
assert(futures.size() == 0);
// Accessors for primitive variables
const AccessorRO<VecNSp, 3> acc_MassFracs (regions[0], FID_MassFracs);
const AccessorRO<double, 3> acc_temperature (regions[0], FID_temperature);
const AccessorRO< Vec3, 3> acc_velocity (regions[0], FID_velocity);
// Accessors for properties
const AccessorRO<double, 3> acc_rho (regions[0], FID_rho);
// Accessors for conserved variables
const AccessorWO<VecNEq, 3> acc_Conserved (regions[1], FID_Conserved);
// Extract execution domains
Domain r_Fluid = runtime->get_index_space_domain(ctx, regions[1].get_logical_region().get_index_space());
// Launch the kernel (launch domain might be composed by multiple rectangles)
for (RectInDomainIterator<3> Rit(r_Fluid); Rit(); Rit++) {
const int threads_per_block = 256;
const dim3 TPB_3d = splitThreadsPerBlock<Xdir>(threads_per_block, (*Rit));
const dim3 num_blocks_3d = dim3((getSize<Xdir>(*Rit) + (TPB_3d.x - 1)) / TPB_3d.x,
(getSize<Ydir>(*Rit) + (TPB_3d.y - 1)) / TPB_3d.y,
(getSize<Zdir>(*Rit) + (TPB_3d.z - 1)) / TPB_3d.z);
UpdateConservedFromPrimitive_kernel<<<num_blocks_3d, TPB_3d>>>(
acc_MassFracs, acc_temperature, acc_velocity,
acc_rho, acc_Conserved, (*Rit),
getSize<Xdir>(*Rit), getSize<Ydir>(*Rit), getSize<Zdir>(*Rit));
}
}
//-----------------------------------------------------------------------------
// KERNELS FOR UpdatePrimitiveFromConservedTask
//-----------------------------------------------------------------------------
__global__
void UpdatePrimitiveFromConserved_kernel(const AccessorRO<VecNEq, 3> Conserved,
const AccessorRW<double, 3> temperature,
const AccessorWO<double, 3> pressure,
const AccessorWO<VecNSp, 3> MolarFracs,
const AccessorWO< Vec3, 3> velocity,
const Rect<3> my_bounds,
const coord_t size_x,
const coord_t size_y,
const coord_t size_z)
{
int x = blockIdx.x * blockDim.x + threadIdx.x;
int y = blockIdx.y * blockDim.y + threadIdx.y;
int z = blockIdx.z * blockDim.z + threadIdx.z;
if ((x < size_x) && (y < size_y) && (z < size_z)) {
const Point<3> p = Point<3>(x + my_bounds.lo.x,
y + my_bounds.lo.y,
z + my_bounds.lo.z);
UpdatePrimitiveFromConservedTask::UpdatePrimitive(
Conserved, temperature, pressure,
MolarFracs, velocity,
p, mix);
}
}
__host__
void UpdatePrimitiveFromConservedTask::gpu_base_impl(
const Args &args,
const std::vector<PhysicalRegion> ®ions,
const std::vector<Future> &futures,
Context ctx, Runtime *runtime)
{
assert(regions.size() == 2);
assert(futures.size() == 0);
// Accessors for conserved variables
const AccessorRO<VecNEq, 3> acc_Conserved (regions[0], FID_Conserved);
// Accessors for temperature variables
const AccessorRW<double, 3> acc_temperature (regions[1], FID_temperature);
// Accessors for primitive variables
const AccessorWO<double, 3> acc_pressure (regions[1], FID_pressure);
const AccessorWO<VecNSp, 3> acc_MolarFracs (regions[1], FID_MolarFracs);
const AccessorWO< Vec3, 3> acc_velocity (regions[1], FID_velocity);
// Extract execution domains
Rect<3> r_Fluid = runtime->get_index_space_domain(ctx, regions[1].get_logical_region().get_index_space());
// Launch the kernel
const int threads_per_block = 256;
const dim3 TPB_3d = splitThreadsPerBlock<Xdir>(threads_per_block, r_Fluid);
const dim3 num_blocks_3d = dim3((getSize<Xdir>(r_Fluid) + (TPB_3d.x - 1)) / TPB_3d.x,
(getSize<Ydir>(r_Fluid) + (TPB_3d.y - 1)) / TPB_3d.y,
(getSize<Zdir>(r_Fluid) + (TPB_3d.z - 1)) / TPB_3d.z);
UpdatePrimitiveFromConserved_kernel<<<num_blocks_3d, TPB_3d>>>(
acc_Conserved, acc_temperature, acc_pressure,
acc_MolarFracs, acc_velocity, r_Fluid,
getSize<Xdir>(r_Fluid), getSize<Ydir>(r_Fluid), getSize<Zdir>(r_Fluid));
}