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Hdf rm anchor
AnchorNamesummary

Excerpt

Sets the size of the parameter used to control the B-trees for indexing chunked datasets

.

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Hdf rm anchor
AnchorNameprocedure

Procedure:
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H5P_SET_ISTORE_K ( fcpl_id, ik )

Hdf rm anchor
AnchorNamesignature

Signature:
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<pre><code class="language-c">herr_t H5Pset_istore_k(
            hid_t fcpl_id,
            unsigned ik
        )

  </code></pre>
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<pre><code class="language-fortran">Fortran90 Interface: h5pset_istore_k_f
    
SUBROUTINE h5pset_istore_k_f (prp_id, ik, hdferr)
  IMPLICIT NONE
  INTEGER(HID_T), INTENT(IN) :: prp_id ! Property list identifier
  INTEGER, INTENT(IN) :: ik            ! 1/2 rank of chunked storage B-tree
  INTEGER, INTENT(OUT) :: hdferr       ! Error code
                                       ! 0 on success and -1 on failure
END SUBROUTINE h5pset_istore_k_f
    </code></pre>

Hdf rm anchor
AnchorNameparameters

Parameters:
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hid_t fcpl_id    IN: File creation property list identifier
unsigned ikIN: 1/2 rank of chunked storage B-tree

Hdf rm anchor
AnchorNamedescription

Description:
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H5Pset

H5P_

istore

SET_

k

ISTORE_K sets the size of the parameter used to control the B-trees for indexing chunked datasets. This function is valid only for file creation property lists.

ik is one half the rank of a tree that stores chunked raw data. On average, such a tree will be 75% full, or have an average rank of 1.5 times the value of ik.

The HDF5 library uses (ik*2) as the maximum # of entries before splitting a B-tree node. Since only 2 bytes are used in storing # of entries for a B-tree node in an HDF5 file, (ik*2) cannot exceed 65536. The default value for ik is 32.

Hdf rm anchor
AnchorNamereturns

Returns:
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Returns a non-negative value if successful; otherwise returns a negative value.

Hdf rm anchor
AnchorNameexample

Example:
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filepathfortran/examples/compound.f90
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Hdf rm anchor
AnchorNamehistory

History:
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Release    

C

Change
1.6.4ik parameter type changed to unsigned.