creating a sparse dbcsr matrix

[Adam]

Hi,

I'm creating dbcsr matrices out of dense 2d fortran arrays. However few 
elements are non-zero values, and I'd like to build a dbcsr matrix in 
sparse format so I can see speed ups when doing multiplication. The 
examples provided with the dbcsr package only show how to build dense 
random matrices. Is there any examples on building sparse matrices, or can 
you tell me how a sparse matrix is built? Right now timing my code it is 
scaling closer to order n^3 than n. Any help is much appreciated.

Thanks,
Adam
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