/usr/include/viennacl/scheduler/execute_util.hpp is in libviennacl-dev 1.5.1-1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
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#define VIENNACL_SCHEDULER_EXECUTE_UTIL_HPP
/* =========================================================================
Copyright (c) 2010-2014, Institute for Microelectronics,
Institute for Analysis and Scientific Computing,
TU Wien.
Portions of this software are copyright by UChicago Argonne, LLC.
-----------------
ViennaCL - The Vienna Computing Library
-----------------
Project Head: Karl Rupp rupp@iue.tuwien.ac.at
(A list of authors and contributors can be found in the PDF manual)
License: MIT (X11), see file LICENSE in the base directory
============================================================================= */
/** @file viennacl/scheduler/execute_util.hpp
@brief Provides various utilities for implementing the execution of statements
*/
#include <assert.h>
#include "viennacl/forwards.h"
#include "viennacl/scalar.hpp"
#include "viennacl/vector.hpp"
#include "viennacl/matrix.hpp"
#include "viennacl/scheduler/forwards.h"
namespace viennacl
{
namespace scheduler
{
namespace detail
{
//
inline lhs_rhs_element const & extract_representative_vector(statement const & s, lhs_rhs_element const & element)
{
switch (element.type_family)
{
case VECTOR_TYPE_FAMILY:
return element;
case COMPOSITE_OPERATION_FAMILY:
{
statement_node const & leaf = s.array()[element.node_index];
if (leaf.op.type_family == OPERATION_UNARY_TYPE_FAMILY)
return extract_representative_vector(s, leaf.lhs);
switch (leaf.op.type)
{
case OPERATION_BINARY_ADD_TYPE:
case OPERATION_BINARY_SUB_TYPE:
case OPERATION_BINARY_MULT_TYPE:
case OPERATION_BINARY_DIV_TYPE:
case OPERATION_BINARY_ELEMENT_PROD_TYPE:
case OPERATION_BINARY_ELEMENT_DIV_TYPE:
return extract_representative_vector(s, leaf.lhs);
case OPERATION_BINARY_MAT_VEC_PROD_TYPE:
return extract_representative_vector(s, leaf.rhs);
default:
throw statement_not_supported_exception("Vector leaf encountered an invalid binary operation!");
}
}
default:
throw statement_not_supported_exception("Vector leaf encountered an invalid node type!");
}
}
// helper routines for extracting the scalar type
inline float convert_to_float(float f) { return f; }
inline float convert_to_float(double d) { return static_cast<float>(d); }
inline float convert_to_float(lhs_rhs_element const & el)
{
if (el.type_family == SCALAR_TYPE_FAMILY && el.subtype == HOST_SCALAR_TYPE && el.numeric_type == FLOAT_TYPE)
return el.host_float;
if (el.type_family == SCALAR_TYPE_FAMILY && el.subtype == DEVICE_SCALAR_TYPE && el.numeric_type == FLOAT_TYPE)
return *el.scalar_float;
throw statement_not_supported_exception("Cannot convert to float");
}
// helper routines for extracting the scalar type
inline double convert_to_double(float d) { return static_cast<double>(d); }
inline double convert_to_double(double d) { return d; }
inline double convert_to_double(lhs_rhs_element const & el)
{
if (el.type_family == SCALAR_TYPE_FAMILY && el.subtype == HOST_SCALAR_TYPE && el.numeric_type == DOUBLE_TYPE)
return el.host_double;
if (el.type_family == SCALAR_TYPE_FAMILY && el.subtype == DEVICE_SCALAR_TYPE && el.numeric_type == DOUBLE_TYPE)
return *el.scalar_double;
throw statement_not_supported_exception("Cannot convert to double");
}
/////////////////// Create/Destory temporary vector ///////////////////////
inline void new_element(lhs_rhs_element & new_elem, lhs_rhs_element const & old_element)
{
new_elem.type_family = old_element.type_family;
new_elem.subtype = old_element.subtype;
new_elem.numeric_type = old_element.numeric_type;
if (new_elem.type_family == SCALAR_TYPE_FAMILY)
{
assert(new_elem.subtype == DEVICE_SCALAR_TYPE && bool("Expected a device scalar in root node"));
switch (new_elem.numeric_type)
{
case FLOAT_TYPE:
new_elem.scalar_float = new viennacl::scalar<float>();
return;
case DOUBLE_TYPE:
new_elem.scalar_double = new viennacl::scalar<double>();
return;
default:
throw statement_not_supported_exception("Invalid vector type for vector construction");
}
}
else if (new_elem.type_family == VECTOR_TYPE_FAMILY)
{
assert(new_elem.subtype == DENSE_VECTOR_TYPE && bool("Expected a dense vector in root node"));
switch (new_elem.numeric_type)
{
case FLOAT_TYPE:
new_elem.vector_float = new viennacl::vector<float>((old_element.vector_float)->size());
return;
case DOUBLE_TYPE:
new_elem.vector_double = new viennacl::vector<double>((old_element.vector_float)->size());
return;
default:
throw statement_not_supported_exception("Invalid vector type for vector construction");
}
}
else if (new_elem.type_family == MATRIX_TYPE_FAMILY)
{
assert( (new_elem.subtype == DENSE_COL_MATRIX_TYPE || new_elem.subtype == DENSE_ROW_MATRIX_TYPE)
&& bool("Expected a dense matrix in root node"));
if (new_elem.subtype == DENSE_COL_MATRIX_TYPE)
{
switch (new_elem.numeric_type)
{
case FLOAT_TYPE:
new_elem.matrix_col_float = new viennacl::matrix<float, viennacl::column_major>((old_element.matrix_col_float)->size1(), (old_element.matrix_col_float)->size2());
return;
case DOUBLE_TYPE:
new_elem.matrix_col_double = new viennacl::matrix<double, viennacl::column_major>((old_element.matrix_col_double)->size1(), (old_element.matrix_col_double)->size2());
return;
default:
throw statement_not_supported_exception("Invalid vector type for vector construction");
}
}
else if (new_elem.subtype == DENSE_ROW_MATRIX_TYPE)
{
switch (new_elem.numeric_type)
{
case FLOAT_TYPE:
new_elem.matrix_row_float = new viennacl::matrix<float, viennacl::row_major>((old_element.matrix_row_float)->size1(), (old_element.matrix_row_float)->size2());
return;
case DOUBLE_TYPE:
new_elem.matrix_row_double = new viennacl::matrix<double, viennacl::row_major>((old_element.matrix_row_double)->size1(), (old_element.matrix_row_double)->size2());
return;
default:
throw statement_not_supported_exception("Invalid vector type for vector construction");
}
}
else
throw statement_not_supported_exception("Expected a dense matrix in root node when creating a temporary");
}
else
throw statement_not_supported_exception("Unknown type familty when creating new temporary object");
}
inline void delete_element(lhs_rhs_element & elem)
{
if (elem.type_family == SCALAR_TYPE_FAMILY)
{
switch (elem.numeric_type)
{
case FLOAT_TYPE:
delete elem.scalar_float;
return;
case DOUBLE_TYPE:
delete elem.scalar_double;
return;
default:
throw statement_not_supported_exception("Invalid vector type for vector destruction");
}
}
else if (elem.type_family == VECTOR_TYPE_FAMILY)
{
switch (elem.numeric_type)
{
case FLOAT_TYPE:
delete elem.vector_float;
return;
case DOUBLE_TYPE:
delete elem.vector_double;
return;
default:
throw statement_not_supported_exception("Invalid vector type for vector destruction");
}
}
else if (elem.type_family == MATRIX_TYPE_FAMILY)
{
if (elem.subtype == DENSE_COL_MATRIX_TYPE)
{
switch (elem.numeric_type)
{
case FLOAT_TYPE:
delete elem.matrix_col_float;
return;
case DOUBLE_TYPE:
delete elem.matrix_col_double;
return;
default:
throw statement_not_supported_exception("Invalid vector type for vector destruction");
}
}
else if (elem.subtype == DENSE_ROW_MATRIX_TYPE)
{
switch (elem.numeric_type)
{
case FLOAT_TYPE:
delete elem.matrix_row_float;
return;
case DOUBLE_TYPE:
delete elem.matrix_row_double;
return;
default:
throw statement_not_supported_exception("Invalid vector type for vector destruction");
}
}
else
throw statement_not_supported_exception("Expected a dense matrix in root node when deleting temporary");
}
else
throw statement_not_supported_exception("Unknown type familty when deleting temporary object");
}
} // namespace detail
} // namespace scheduler
} // namespace viennacl
#endif
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