Add clang format

Author: ye-luo

.clang-format

@@ -0,0 +1,114 @@
+---
+Language:        Cpp
+AccessModifierOffset: -2
+AlignAfterOpenBracket: Align
+AlignConsecutiveAssignments: true
+AlignConsecutiveDeclarations: false
+AlignEscapedNewlines: Left
+AlignOperands: false
+AlignTrailingComments: true
+AllowAllParametersOfDeclarationOnNextLine: false
+AllowShortBlocksOnASingleLine: true
+AllowShortCaseLabelsOnASingleLine: false
+AllowShortFunctionsOnASingleLine: All
+AllowShortIfStatementsOnASingleLine: false
+AllowShortLoopsOnASingleLine: false
+AlwaysBreakAfterDefinitionReturnType: None
+AlwaysBreakAfterReturnType: None
+AlwaysBreakBeforeMultilineStrings: false
+AlwaysBreakTemplateDeclarations: true
+BinPackArguments: true
+BinPackParameters: false
+BraceWrapping:
+  AfterClass:      true
+  AfterControlStatement: true
+  AfterEnum:       true
+  AfterFunction:   true
+  AfterNamespace:  true
+  AfterObjCDeclaration: true
+  AfterStruct:     true
+  AfterUnion:      true
+  AfterExternBlock: true
+  BeforeCatch:     true
+  BeforeElse:      true
+  IndentBraces:    false
+  SplitEmptyFunction: false
+  SplitEmptyRecord: false
+  SplitEmptyNamespace: false
+BreakBeforeBinaryOperators: None
+BreakBeforeBraces: Custom
+BreakBeforeInheritanceComma: false
+BreakBeforeTernaryOperators: true
+BreakConstructorInitializersBeforeComma: false
+BreakConstructorInitializers: BeforeColon
+BreakAfterJavaFieldAnnotations: false
+BreakStringLiterals: true
+ColumnLimit:     120
+CommentPragmas:  '^ IWYU pragma:'
+CompactNamespaces: false
+ConstructorInitializerAllOnOneLineOrOnePerLine: true
+ConstructorInitializerIndentWidth: 4
+ContinuationIndentWidth: 4
+Cpp11BracedListStyle: true
+DerivePointerAlignment: false
+DisableFormat:   false
+ExperimentalAutoDetectBinPacking: false
+FixNamespaceComments: true
+ForEachMacros:
+  - foreach
+  - Q_FOREACH
+  - BOOST_FOREACH
+IncludeBlocks:   Preserve
+IncludeCategories:
+  - Regex:           '^"(llvm|llvm-c|clang|clang-c)/'
+    Priority:        2
+  - Regex:           '^(<|"(gtest|gmock|isl|json)/)'
+    Priority:        3
+  - Regex:           '.*'
+    Priority:        1
+IncludeIsMainRegex: '(Test)?$'
+IndentCaseLabels: false
+IndentPPDirectives: None
+IndentWidth:     2
+IndentWrappedFunctionNames: true
+JavaScriptQuotes: Leave
+JavaScriptWrapImports: true
+KeepEmptyLinesAtTheStartOfBlocks: false
+MacroBlockBegin: ''
+MacroBlockEnd:   ''
+MaxEmptyLinesToKeep: 2
+NamespaceIndentation: None
+ObjCBlockIndentWidth: 2
+ObjCSpaceAfterProperty: false
+ObjCSpaceBeforeProtocolList: true
+PenaltyBreakAssignment: 2
+PenaltyBreakBeforeFirstCallParameter: 30000
+PenaltyBreakComment: 300
+PenaltyBreakFirstLessLess: 120
+PenaltyBreakString: 1000
+PenaltyExcessCharacter: 1000000
+PenaltyReturnTypeOnItsOwnLine: 10000
+PointerAlignment: Left
+ReflowComments:  false
+SortIncludes:    false
+SortUsingDeclarations: true
+SpaceAfterCStyleCast: false
+SpaceAfterTemplateKeyword: false
+SpaceBeforeAssignmentOperators: true
+SpaceBeforeParens: ControlStatements
+SpaceInEmptyParentheses: false
+SpacesBeforeTrailingComments: 1
+SpacesInAngles:  false
+SpacesInContainerLiterals: true
+SpaceBeforeCtorInitializerColon: true
+SpaceBeforeInheritanceColon: true
+SpaceBeforeRangeBasedForLoopColon: true
+SpaceInEmptyParentheses: false
+SpacesInCStyleCastParentheses: false
+SpacesInParentheses: false
+SpacesInSquareBrackets: false
+Standard:        Cpp11
+TabWidth:        8
+UseTab:          Never
+...
+

hands-on/gemv/1-gemv-omp/gemv-omp.cpp

@@ -1,53 +1,53 @@
 #define N 8192
 #include "timer.h"
 
-template <typename T>
+template<typename T>
 void gemv(int n, T alpha, const T* __restrict__ A, const T* __restrict__ V, T* __restrict__ Vout)
 {
-  #pragma omp parallel for
-  for(int row=0; row<n; row++)
+#pragma omp parallel for
+  for (int row = 0; row < n; row++)
   {
-    T sum = T(0);
-    const T *__restrict__ A_row = A+row*n;
-    for(int col=0; col<n; col++)
-      sum += A_row[col]*V[col];
-    Vout[row] = sum*alpha;
+    T sum                       = T(0);
+    const T* __restrict__ A_row = A + row * n;
+    for (int col = 0; col < n; col++)
+      sum += A_row[col] * V[col];
+    Vout[row] = sum * alpha;
   }
 }
 
-template <class T>
+template<class T>
 T* allocate(size_t n)
 {
   T* ptr = new T[n];
   std::fill_n(ptr, n, T(1));
   return ptr;
 }
 
-template <class T>
+template<class T>
 void deallocate(T* ptr, size_t n)
 {
   delete[] ptr;
 }
 
 int main()
 {
-  auto* A = allocate<float>(N*N);
-  auto* V = allocate<float>(N);
+  auto* A    = allocate<float>(N * N);
+  auto* V    = allocate<float>(N);
   auto* Vout = allocate<float>(N);
 
   {
     Timer local("GEMV");
     gemv(N, 1.0f, A, V, Vout);
   }
 
-  for(int i=0; i<N; i++)
-    if(Vout[i]!=N)
+  for (int i = 0; i < N; i++)
+    if (Vout[i] != N)
     {
-      std::cerr << "Vout[" << i <<"] != " << N << ", wrong value is " << Vout[i] << std::endl;
+      std::cerr << "Vout[" << i << "] != " << N << ", wrong value is " << Vout[i] << std::endl;
       break;
     }
 
-  deallocate(A, N*N);
+  deallocate(A, N * N);
   deallocate(V, N);
   deallocate(Vout, N);
 }

hands-on/gemv/2-gemv-omp-target/gemv-omp-target.cpp

@@ -1,53 +1,53 @@
 #define N 8192
 #include "timer.h"
 
-template <typename T>
+template<typename T>
 void gemv(int n, T alpha, const T* __restrict__ A, const T* __restrict__ V, T* __restrict__ Vout)
 {
-  #pragma omp target parallel for map(to:A[:n*n], V[:n]) map(from:Vout[:n])
-  for(int row=0; row<n; row++)
+#pragma omp target parallel for map(to : A[:n * n], V[:n]) map(from : Vout[:n])
+  for (int row = 0; row < n; row++)
   {
-    T sum = T(0);
-    const T *__restrict__ A_row = A+row*n;
-    for(int col=0; col<n; col++)
-      sum += A_row[col]*V[col];
-    Vout[row] = sum*alpha;
+    T sum                       = T(0);
+    const T* __restrict__ A_row = A + row * n;
+    for (int col = 0; col < n; col++)
+      sum += A_row[col] * V[col];
+    Vout[row] = sum * alpha;
   }
 }
 
-template <class T>
+template<class T>
 T* allocate(size_t n)
 {
   T* ptr = new T[n];
   std::fill_n(ptr, n, T(1));
   return ptr;
 }
 
-template <class T>
+template<class T>
 void deallocate(T* ptr, size_t n)
 {
   delete[] ptr;
 }
 
 int main()
 {
-  auto* A = allocate<float>(N*N);
-  auto* V = allocate<float>(N);
+  auto* A    = allocate<float>(N * N);
+  auto* V    = allocate<float>(N);
   auto* Vout = allocate<float>(N);
 
   {
     Timer local("GEMV");
     gemv(N, 1.0f, A, V, Vout);
   }
 
-  for(int i=0; i<N; i++)
-    if(Vout[i]!=N)
+  for (int i = 0; i < N; i++)
+    if (Vout[i] != N)
     {
-      std::cerr << "Vout[" << i <<"] != " << N << ", wrong value is " << Vout[i] << std::endl;
+      std::cerr << "Vout[" << i << "] != " << N << ", wrong value is " << Vout[i] << std::endl;
       break;
     }
 
-  deallocate(A, N*N);
+  deallocate(A, N * N);
   deallocate(V, N);
   deallocate(Vout, N);
 }

hands-on/gemv/3-gemv-omp-target-teams/gemv-omp-target-teams.cpp

@@ -1,21 +1,21 @@
 #define N 8192
 #include "timer.h"
 
-template <typename T>
+template<typename T>
 void gemv(int n, T alpha, const T* __restrict__ A, const T* __restrict__ V, T* __restrict__ Vout)
 {
-  #pragma omp target teams distribute parallel for map(to:A[:n*n], V[:n]) map(from:Vout[:n])
-  for(int row=0; row<n; row++)
+#pragma omp target teams distribute parallel for map(to : A[:n * n], V[:n]) map(from : Vout[:n])
+  for (int row = 0; row < n; row++)
   {
-    T sum = T(0);
-    const T *__restrict__ A_row = A+row*n;
-    for(int col=0; col<n; col++)
-      sum += A_row[col]*V[col];
-    Vout[row] = sum*alpha;
+    T sum                       = T(0);
+    const T* __restrict__ A_row = A + row * n;
+    for (int col = 0; col < n; col++)
+      sum += A_row[col] * V[col];
+    Vout[row] = sum * alpha;
   }
 }
 
-template <class T>
+template<class T>
 T* allocate(size_t n)
 {
   T* ptr = new T[n];
@@ -24,7 +24,7 @@ T* allocate(size_t n)
   return ptr;
 }
 
-template <class T>
+template<class T>
 void deallocate(T* ptr, size_t n)
 {
   //#pragma omp target exit data map(delete:ptr[:n])
@@ -33,23 +33,23 @@ void deallocate(T* ptr, size_t n)
 
 int main()
 {
-  auto* A = allocate<float>(N*N);
-  auto* V = allocate<float>(N);
+  auto* A    = allocate<float>(N * N);
+  auto* V    = allocate<float>(N);
   auto* Vout = allocate<float>(N);
 
   {
     Timer local("GEMV");
     gemv(N, 1.0f, A, V, Vout);
   }
 
-  for(int i=0; i<N; i++)
-    if(Vout[i]!=N)
+  for (int i = 0; i < N; i++)
+    if (Vout[i] != N)
     {
-      std::cerr << "Vout[" << i <<"] != " << N << ", wrong value is " << Vout[i] << std::endl;
+      std::cerr << "Vout[" << i << "] != " << N << ", wrong value is " << Vout[i] << std::endl;
       break;
     }
 
-  deallocate(A, N*N);
+  deallocate(A, N * N);
   deallocate(V, N);
   deallocate(Vout, N);
 }