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Make the static assertions on maximal fixed size object use EIGEN_STACK_ALLOCATION_LIMIT, and raise its default value to 128KB

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(transplanted from 7bca2910c7922021ea447739eb0596f15790c891
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This commit is contained in:
Gael Guennebaud 2013-08-20 13:59:33 +02:00
parent d132159ba3
commit 3c5e82ee0b
3 changed files with 10 additions and 6 deletions
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8
Eigen/src/Core/DenseStorage.h
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@ -38,12 +38,12 @@ struct plain_array
plain_array() plain_array()
{ {
EIGEN_STATIC_ASSERT(Size * sizeof(T) <= 128 * 128 * 8, OBJECT_ALLOCATED_ON_STACK_IS_TOO_BIG); EIGEN_STATIC_ASSERT(Size * sizeof(T) <= EIGEN_STACK_ALLOCATION_LIMIT, OBJECT_ALLOCATED_ON_STACK_IS_TOO_BIG);
} }
plain_array(constructor_without_unaligned_array_assert) plain_array(constructor_without_unaligned_array_assert)
{ {
EIGEN_STATIC_ASSERT(Size * sizeof(T) <= 128 * 128 * 8, OBJECT_ALLOCATED_ON_STACK_IS_TOO_BIG); EIGEN_STATIC_ASSERT(Size * sizeof(T) <= EIGEN_STACK_ALLOCATION_LIMIT, OBJECT_ALLOCATED_ON_STACK_IS_TOO_BIG);
} }
}; };
@ -76,12 +76,12 @@ struct plain_array<T, Size, MatrixOrArrayOptions, 16>
plain_array() plain_array()
{ {
EIGEN_MAKE_UNALIGNED_ARRAY_ASSERT(0xf); EIGEN_MAKE_UNALIGNED_ARRAY_ASSERT(0xf);
EIGEN_STATIC_ASSERT(Size * sizeof(T) <= 128 * 128 * 8, OBJECT_ALLOCATED_ON_STACK_IS_TOO_BIG); EIGEN_STATIC_ASSERT(Size * sizeof(T) <= EIGEN_STACK_ALLOCATION_LIMIT, OBJECT_ALLOCATED_ON_STACK_IS_TOO_BIG);
} }
plain_array(constructor_without_unaligned_array_assert) plain_array(constructor_without_unaligned_array_assert)
{ {
EIGEN_STATIC_ASSERT(Size * sizeof(T) <= 128 * 128 * 8, OBJECT_ALLOCATED_ON_STACK_IS_TOO_BIG); EIGEN_STATIC_ASSERT(Size * sizeof(T) <= EIGEN_STACK_ALLOCATION_LIMIT, OBJECT_ALLOCATED_ON_STACK_IS_TOO_BIG);
} }
}; };

3
Eigen/src/Core/util/Macros.h
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@ -289,7 +289,8 @@ namespace Eigen {
#endif #endif
#ifndef EIGEN_STACK_ALLOCATION_LIMIT #ifndef EIGEN_STACK_ALLOCATION_LIMIT
#define EIGEN_STACK_ALLOCATION_LIMIT 20000 // 131072 == 128 KB
#define EIGEN_STACK_ALLOCATION_LIMIT 131072
#endif #endif
#ifndef EIGEN_DEFAULT_IO_FORMAT #ifndef EIGEN_DEFAULT_IO_FORMAT

3
doc/PreprocessorDirectives.dox
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@ -70,6 +70,9 @@ run time. However, these assertions do cost time and can thus be turned off.
- \b EIGEN_UNROLLING_LIMIT - defines the size of a loop to enable meta unrolling. Set it to zero to disable - \b EIGEN_UNROLLING_LIMIT - defines the size of a loop to enable meta unrolling. Set it to zero to disable
unrolling. The size of a loop here is expressed in %Eigen's own notion of "number of FLOPS", it does not unrolling. The size of a loop here is expressed in %Eigen's own notion of "number of FLOPS", it does not
correspond to the number of iterations or the number of instructions. The default is value 100. correspond to the number of iterations or the number of instructions. The default is value 100.
- \b EIGEN_STACK_ALLOCATION_LIMIT - defines the maximum bytes for a buffer to be allocated on the stack. For internal
temporary buffers, dynamic memory allocation is employed as a fall back. For fixed-size matrices or arrays, exceeding
this threshold raises a compile time assertion. Default is 128 KB.
\section TopicPreprocessorDirectivesPlugins Plugins \section TopicPreprocessorDirectivesPlugins Plugins