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Move 1d_HeatTransfer sample to open source GitHub.
Signed-off-by: Loc Nguyen <[email protected]>
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‎DirectProgramming/DPC++/StructuredGrids/1d_HeatTransfer/1d_HeatTransfer.sln‎

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Microsoft Visual Studio Solution File, Format Version 12.00
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‎DirectProgramming/DPC++/StructuredGrids/1d_HeatTransfer/1d_HeatTransfer.vcxproj‎

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‎DirectProgramming/DPC++/StructuredGrids/1d_HeatTransfer/1d_HeatTransfer.vcxproj.filters‎

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‎DirectProgramming/DPC++/StructuredGrids/1d_HeatTransfer/1d_HeatTransfer.vcxproj.user‎

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‎DirectProgramming/DPC++/StructuredGrids/1d_HeatTransfer/CMakeLists.txt‎

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# required cmake version
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cmake_minimum_required(VERSION 3.5)
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# CMakeLists.txt for 1d_HeatTransfer project
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project (1d_HeatTransfer)
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set(CMAKE_CXX_COMPILER "dpcpp")
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# Set default build type to RelWithDebInfo if not specified
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if (NOT CMAKE_BUILD_TYPE)
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message (STATUS "Default CMAKE_BUILD_TYPE not set using Release with Debug Info")
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set (CMAKE_BUILD_TYPE "RelWithDebInfo" CACHE
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STRING "Choose the type of build, options are: None Debug Release RelWithDebInfo MinSizeRel"
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FORCE)
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endif()
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set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -O3 -fsycl -std=c++17")
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set(CMAKE_EXE_LINKER_FLAGS "${CMAKE_EXE_LINKER_FLAGS} -lOpenCL -lsycl")
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add_executable (1d_HeatTransfer src/1d_HeatTransfer.cpp)
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add_custom_target (run
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COMMAND 1d_HeatTransfer 100 1000
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WORKING_DIRECTORY ${CMAKE_PROJECT_DIR}
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)
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‎DirectProgramming/DPC++/StructuredGrids/1d_HeatTransfer/License.txt‎

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Copyright 2019 Intel Corporation
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Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions:
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The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.
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THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.

‎DirectProgramming/DPC++/StructuredGrids/1d_HeatTransfer/README.md‎

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# 1D-Heat-Transfer Sample
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This code sample demonstrates the simulation of one dimensional heat transfer process using
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Intel Data Parallel C++. Kernels in this example are implemented as a discretized differential
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equation with second derivative in space and first derivative in time.
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For comprehensive instructions regarding DPC++ Programming, go to
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https://software.intel.com/en-us/oneapi-programming-guide
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and search based on relevant terms noted in the comments.
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| Optimized for | Description
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|:--- |:---
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| OS | Linux Ubuntu 18.04
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| Hardware | Skylake with GEN9 or newer
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| Software | Intel&reg; oneAPI DPC++ Compiler (beta); Intel C++ Compiler (beta)
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| What you will learn | How to simulate 1D Heat Transfer using Intel DPC++ compiler
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| Time to complete | 10 minutes
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## Purpose
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1D-Heat-Transfer is a DPC++ application that simulates the heat propagation on a one-dimensional
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isotropic and homogeneous medium. The following equation is used in the simulation of heat propagation:
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dU/dt = k * d2U/dx2
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Where:
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dU/dt is the rate of change of temperature at a point.
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k is the thermal difusivity.
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d2U/dx2 is the second spatial derivative.
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Or
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U(i) = C * (U(i+1) - 2 * U(i) + U(i-1)) + U(i)
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where constant C = k * dt / (dx * dx)
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The code sample includes both parallel and serial calculation of heat propagation. The code sample will
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attempt first to execute on an available GPU and fallback to the system's CPU if a compatible GPU is
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not detected. The results are stored in a file.
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## Key Implementation Details
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The basic DPC++ implementation explained in the code includes device selector, buffer, accessor, kernel, and command groups.
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## License
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This code sample is licensed under MIT license
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## Building the `1d_HeatTransfer` Program for CPU and GPU
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### Include Files
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The include folder is located at `%ONEAPI_ROOT%\dev-utilities\latest\include` on your development system".
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### Running Samples In DevCloud
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If running a sample in the Intel DevCloud, remember that you must specify the compute node (CPU, GPU,
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FPGA) as well whether to run in batch or interactive mode. For more information see the Intel® oneAPI
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Base Toolkit Get Started Guide (https://devcloud.intel.com/oneapi/get-started/base-toolkit/)
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### On a Linux* System
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1. Build the program using the following `cmake` commands.
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```
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$ cd 1d_HeatTransfer
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$ mkdir build
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$ cd build
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$ cmake ..
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$ make -j
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```
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2. Run the program
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```
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make run
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```
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3. Clean the program
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```
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make clean
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```
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### On a Windows* System
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* Build the program using VS2017 or VS2019
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Right click on the solution file and open using either VS2017 or VS2019 IDE.
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Right click on the project in Solution explorer and select Rebuild.
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From top menu select Debug -> Start without Debugging.
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* Build the program using MSBuild
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Open "x64 Native Tools Command Prompt for VS2017" or "x64 Native Tools Command Prompt for
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VS2019"
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Run - MSBuild 1d_HeatTransfer.sln /t:Rebuild /p:Configuration="Release"
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## Running the sample
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### Application Parameters
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Usage: 1d_HeatTransfer <n> <i>
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where
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n is the number of points you want to simulate the heat transfer.
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i is the number of timesteps in the simulation.
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The sample offloads the computation to GPU and also performs a computation in serial in the CPU.
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The results from the parallel and serial computation are compared and stored in an output file named "error_diff.txt".
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If the results match, the application will display a “PASSED” message.
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### Example of Output
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```
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$ ./1d_HeatTransfer 100 1000
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Number of points: 100
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Number of iterations: 1000
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Kernel runs on Intel(R) Gen9 HD Graphics NEO
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Kernel time: 0.347854 sec
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PASSED! There is no difference between the results computed in host and in kernel.
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```

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