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//------------------------------------------------------------------------------
// GxB_Matrix_memoryUsage: # of bytes used for a matrix
//------------------------------------------------------------------------------
// SuiteSparse:GraphBLAS, Timothy A. Davis, (c) 2017-2025, All Rights Reserved.
// SPDX-License-Identifier: Apache-2.0
//------------------------------------------------------------------------------
#include "GB.h"
GrB_Info GxB_Matrix_memoryUsage // return # of bytes used for a matrix
(
size_t *size, // # of bytes used by the matrix A
const GrB_Matrix A // matrix to query
)
{
//--------------------------------------------------------------------------
// check inputs
//--------------------------------------------------------------------------
GrB_Info info ;
GB_CHECK_INIT ;
GB_RETURN_IF_NULL (size) ;
GB_RETURN_IF_NULL_OR_INVALID (A) ;
//--------------------------------------------------------------------------
// get the memory size taken by the matrix
//--------------------------------------------------------------------------
int64_t nallocs ;
size_t mem_shallow ;
GB_memoryUsage (&nallocs, size, &mem_shallow, A, true) ;
if (GB_Global_stats_mem_shallow_get ( ))
{
(*size) += mem_shallow ;
}
return (GrB_SUCCESS) ;
}
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