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Merged
merged 3 commits into from
Sep 12, 2023
Merged

Add openmp examples as notebooks. #52

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6ce13fb
Add openmp examples as notebooks.
mvassilev Sep 12, 2023
5abcc5c
Add cuda based smallpt example.
mvassilev Sep 12, 2023
0b9fc7b
Remove files.
mvassilev Sep 12, 2023
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84 changes: 84 additions & 0 deletions notebooks/omp/hello_world.ipynb
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Original file line number Diff line number Diff line change
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{
"cells": [
{
"cell_type": "code",
"execution_count": null,
"id": "73cbab37-71dd-477d-981b-f2ec28c01bd6",
"metadata": {},
"outputs": [],
"source": [
"#include <stdio.h>\n",
"#include <omp.h>\n",
"#include </home/jovyan/CppInterOp/include/clang/Interpreter/CppInterOp.h>"
]
},
{
"cell_type": "code",
"execution_count": null,
"id": "ef1cd58a-672c-4a6f-843a-6c88fc4911f3",
"metadata": {},
"outputs": [],
"source": [
"Cpp::LoadLibrary(\"libomp\");\n",
" "
]
},
{
"cell_type": "code",
"execution_count": null,
"id": "c2b754ad-9553-4a42-b990-f990a9a269ed",
"metadata": {},
"outputs": [],
"source": [
"int main() {\n",
" int max_threads = omp_get_max_threads();\n",
"\n",
" printf(\"max threads: %d\\n\", max_threads);\n",
" omp_set_num_threads(max_threads);\n",
"\n",
"#pragma omp parallel\n",
" {\n",
" int id = omp_get_thread_num();\n",
" printf(\"Hello World from thread = %d with %d threads\\n\", id, omp_get_num_threads());\n",
" }\n",
"\n",
" printf(\"all done, with hopefully %d threads\\n\", max_threads);\n",
"}"
]
},
{
"cell_type": "code",
"execution_count": null,
"id": "a37a13d4-fc82-496e-8f42-9e718a8c2aa0",
"metadata": {},
"outputs": [],
"source": [
"main();"
]
},
{
"cell_type": "code",
"execution_count": null,
"id": "af54945c-2412-4aee-bbfc-a2f6fc72d23f",
"metadata": {},
"outputs": [],
"source": []
}
],
"metadata": {
"kernelspec": {
"display_name": "C++14",
"language": "C++14",
"name": "xcpp14"
},
"language_info": {
"codemirror_mode": "text/x-c++src",
"file_extension": ".cpp",
"mimetype": "text/x-c++src",
"name": "c++",
"version": "14"
}
},
"nbformat": 4,
"nbformat_minor": 5
}
224 changes: 224 additions & 0 deletions notebooks/omp/linked_list.ipynb
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Original file line number Diff line number Diff line change
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{
"cells": [
{
"cell_type": "code",
"execution_count": null,
"id": "156447d2-9279-45a0-890b-4e519d2c796b",
"metadata": {},
"outputs": [],
"source": [
"#include <stdlib.h>\n",
"#include <stdio.h>\n",
"#include <omp.h>\n",
"#include </home/jovyan/CppInterOp/include/clang/Interpreter/CppInterOp.h>"
]
},
{
"cell_type": "code",
"execution_count": null,
"id": "c96fdeb0-817d-48c0-af8e-20a52947d60b",
"metadata": {},
"outputs": [],
"source": [
"#ifndef N\n",
"#define N 5\n",
"#endif\n",
"#ifndef FS\n",
"#define FS 38\n",
"#endif"
]
},
{
"cell_type": "code",
"execution_count": null,
"id": "8da842e1-db02-49e0-929d-4e67cbc08172",
"metadata": {},
"outputs": [],
"source": [
"Cpp::LoadLibrary(\"libomp\");"
]
},
{
"cell_type": "code",
"execution_count": null,
"id": "22f97c49-78d1-496e-ac7c-978aed95331a",
"metadata": {},
"outputs": [],
"source": [
"struct node {\n",
" int data;\n",
" int fibdata;\n",
" struct node *next;\n",
"};"
]
},
{
"cell_type": "code",
"execution_count": null,
"id": "b16b1e8a-8831-4b8d-9d57-09deeaaa88ee",
"metadata": {},
"outputs": [],
"source": [
"struct node *init_list(struct node *p);\n",
"void processwork(struct node *p);\n",
"int fib(int n);"
]
},
{
"cell_type": "code",
"execution_count": null,
"id": "0ef8af6c-1d6f-4c68-84bc-3dd1d8092b06",
"metadata": {},
"outputs": [],
"source": [
"int fib(int n) {\n",
" int x, y;\n",
" if (n < 2) {\n",
" return (n);\n",
" } else {\n",
" x = fib(n - 1);\n",
" y = fib(n - 2);\n",
" return (x + y);\n",
" }\n",
"}"
]
},
{
"cell_type": "code",
"execution_count": null,
"id": "1fa0307d-fdc9-4503-95cb-1c6448791354",
"metadata": {},
"outputs": [],
"source": [
"void processwork(struct node *p) {\n",
" int n, temp;\n",
" n = p->data;\n",
" temp = fib(n);\n",
"\n",
" p->fibdata = temp;\n",
"}"
]
},
{
"cell_type": "code",
"execution_count": null,
"id": "03acb599-9329-49ff-8aff-c0902adb6c3c",
"metadata": {},
"outputs": [],
"source": [
"struct node *init_list(struct node *p) {\n",
" int i;\n",
" struct node *head = NULL;\n",
" struct node *temp = NULL;\n",
"\n",
" head = (struct node*) malloc(sizeof(struct node));\n",
" p = head;\n",
" p->data = FS;\n",
" p->fibdata = 0;\n",
" for (i = 0; i < N; i++) {\n",
" temp = (struct node*) malloc(sizeof(struct node));\n",
" p->next = temp;\n",
" p = temp;\n",
" p->data = FS + i + 1;\n",
" p->fibdata = i + 1;\n",
" }\n",
"\n",
" p->next = NULL;\n",
" return head;\n",
"}"
]
},
{
"cell_type": "code",
"execution_count": null,
"id": "f2dfb41b-e55f-43c0-b7f6-546a1697acb1",
"metadata": {},
"outputs": [],
"source": [
"int main() {\n",
" double start, end;\n",
" struct node *p = NULL;\n",
" struct node *temp = NULL;\n",
" struct node *head = NULL;\n",
"\n",
" printf(\"Process linked list\\n\");\n",
" printf(\" Each linked list node will be processed by function 'processwork()'\\n\");\n",
" printf(\" Each ll node will compute %d fibonacci numbers beginning with %d\\n\", N, FS);\n",
"\n",
" omp_set_num_threads(omp_get_max_threads());\n",
"\n",
" p = init_list(p);\n",
" head = p;\n",
"\n",
" start = omp_get_wtime();\n",
"\n",
"#pragma omp parallel\n",
" {\n",
"#pragma omp master\n",
" printf(\"Threads: %d\\n\", omp_get_num_threads());\n",
"\n",
"#pragma omp single\n",
" {\n",
" p = head;\n",
" while (p) {\n",
"#pragma omp task firstprivate(p) // first private is required\n",
" {\n",
" processwork(p);\n",
" }\n",
" p = p->next;\n",
" }\n",
" }\n",
" }\n",
"\n",
" end = omp_get_wtime();\n",
" p = head;\n",
" while (p != NULL) {\n",
" printf(\"%d : %d\\n\", p->data, p->fibdata);\n",
" temp = p->next;\n",
" free(p);\n",
" p = temp;\n",
" }\n",
"\n",
" free(p);\n",
" printf(\"Compute Time: %f seconds\\n\", end - start);\n",
"\n",
" return 0;\n",
"}"
]
},
{
"cell_type": "code",
"execution_count": null,
"id": "353e5dfd-fcae-43e6-97e3-ec98070811a1",
"metadata": {},
"outputs": [],
"source": [
"main();"
]
},
{
"cell_type": "code",
"execution_count": null,
"id": "a24f21c1-2ddc-4e46-b9ee-7cc98fc2821a",
"metadata": {},
"outputs": [],
"source": []
}
],
"metadata": {
"kernelspec": {
"display_name": "C++14",
"language": "C++14",
"name": "xcpp14"
},
"language_info": {
"codemirror_mode": "text/x-c++src",
"file_extension": ".cpp",
"mimetype": "text/x-c++src",
"name": "c++",
"version": "14"
}
},
"nbformat": 4,
"nbformat_minor": 5
}
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