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Original file line number Diff line number Diff line change
Expand Up @@ -3,7 +3,7 @@
"name": "iso3dfd_omp_offload",
"categories": [ "Toolkit/Intel® oneAPI HPC Toolkit" ],
"description": "A finite difference stencil kernel for solving 3D acoustic isotropic wave equation",
"toolchain": [ "icpx" ],
"toolchain": [ "icc" ],
"targetDevice": [ "GPU" ],
"languages": [ { "cpp": {} } ],
"os": [ "linux" ],
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@@ -1,160 +1,158 @@
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Original file line number Diff line number Diff line change
Expand Up @@ -19,6 +19,6 @@ set(CMAKE_EXE_LINKER_FLAGS "${CMAKE_EXE_LINKER_FLAGS} -ltbb -lsycl")
add_executable (dpc_reduce src/main.cpp)

add_custom_target (run
COMMAND dpc_reduce
COMMAND CL_CONFIG_CPU_FORCE_PRIVATE_MEM_SIZE=16MB dpc_reduce
WORKING_DIRECTORY ${CMAKE_PROJECT_DIR}
)
4 changes: 4 additions & 0 deletions DirectProgramming/DPC++/ParallelPatterns/dpc_reduce/README.md
Original file line number Diff line number Diff line change
Expand Up @@ -36,6 +36,10 @@ Using Data Parallel C++, the code sample runs multiple MPI ranks to distribute t
calculation of the number Pi. Each rank offloads the computation to an accelerator
(GPU/CPU) using Intel DPC++ compiler to compute a partial compution of the number Pi.

If you run the sample on a CPU as your default device, you may need to increase
the memory allocation for openCL. You can do this by setting an environment variable,
"CL_CONFIG_CPU_FORCE_PRIVATE_MEM_SIZE=16MB


## Key Implementation Details
The basic DPC++ implementation explained in the code includes accessor,
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Original file line number Diff line number Diff line change
Expand Up @@ -20,7 +20,7 @@
"cd build",
"cmake ..",
"make",
"./dpc_reduce"
"CL_CONFIG_CPU_FORCE_PRIVATE_MEM_SIZE=16MB ./src/dpc_reduce"
]
}
]
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