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authorFrank Baker <fbaker@hdfgroup.org>2005-06-23 21:30:36 (GMT)
committerFrank Baker <fbaker@hdfgroup.org>2005-06-23 21:30:36 (GMT)
commite38365206ae36d83b8e573eb0b2e51e555699c97 (patch)
treecc9e9fcfdd50aa7064946d477191be7c3ebb74bb /doc/html/RM_H5F.html
parent63357e8acb39b451dffff78664d7ebbf50b3b956 (diff)
downloadhdf5-e38365206ae36d83b8e573eb0b2e51e555699c97.zip
hdf5-e38365206ae36d83b8e573eb0b2e51e555699c97.tar.gz
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[svn-r10976]
Purpose: Added new meta data cache functions. Added links to HDF5 High-Level API reference pages to nav bar. Other minor (though somewhat pervasive) reformatting. Platforms tested: Firefox
Diffstat (limited to 'doc/html/RM_H5F.html')
-rw-r--r--doc/html/RM_H5F.html829
1 files changed, 701 insertions, 128 deletions
diff --git a/doc/html/RM_H5F.html b/doc/html/RM_H5F.html
index b77873d..b3cbb33 100644
--- a/doc/html/RM_H5F.html
+++ b/doc/html/RM_H5F.html
@@ -43,6 +43,11 @@ HDF5/H5F API Specification
And in this document, the
<a href="RM_H5Front.html">HDF5 Reference Manual</a>&nbsp;&nbsp;
<br>
+<a href="http://hdf.ncsa.uiuc.edu/HDF5/hdf5_hl/doc/RM_hdf5im.html">H5IM</a>&nbsp;&nbsp;
+<a href="http://hdf.ncsa.uiuc.edu/HDF5/hdf5_hl/doc/RM_hdf5lt.html">H5LT</a>&nbsp;&nbsp;
+<a href="http://hdf.ncsa.uiuc.edu/HDF5/hdf5_hl/doc/RM_hdf5pt.html">H5PT</a>&nbsp;&nbsp;
+<a href="http://hdf.ncsa.uiuc.edu/HDF5/hdf5_hl/doc/RM_hdf5tb.html">H5TB</a>&nbsp;&nbsp;
+<br>
<a href="RM_H5.html">H5</a>&nbsp;&nbsp;
<a href="RM_H5A.html">H5A</a>&nbsp;&nbsp;
<a href="RM_H5D.html">H5D</a>&nbsp;&nbsp;
@@ -82,23 +87,28 @@ documented below.
<li><a href="#File-Reopen">H5Freopen</a>
<li><a href="#File-Close">H5Fclose</a>
<li><a href="#File-Flush">H5Fflush</a>
+ <li><a href="#File-IsHDF5">H5Fis_hdf5</a>
+ <li><a href="#File-Mount">H5Fmount</a>
</ul>
</td><td>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</td><td valign=top>
<ul>
- <li><a href="#File-IsHDF5">H5Fis_hdf5</a>
- <li><a href="#File-Mount">H5Fmount</a>
<li><a href="#File-Unmount">H5Funmount</a>
<li><a href="#File-GetVfdHandle">H5Fget_vfd_handle</a>
<li><a href="#File-GetFilesize">H5Fget_filesize</a>
-</ul>
-</td><td>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</td><td valign=top>
-<ul>
<li><a href="#File-GetCreatePlist">H5Fget_create_plist</a>
<li><a href="#File-GetAccessPlist">H5Fget_access_plist</a>
<li><a href="#File-GetName">H5Fget_name</a>
<li><a href="#File-GetObjCount">H5Fget_obj_count</a>
+</ul>
+</td><td>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</td><td valign=top>
+<ul>
<li><a href="#File-GetObjIDs">H5Fget_obj_ids</a>
<li><a href="#File-GetFreeSpace">H5Fget_freespace</a>
+ <li><a href="#File-GetMdcConfig">H5Fget_mdc_config</a>
+ <li><a href="#File-GetMdcHitRate">H5Fget_mdc_hit_rate</a>
+ <li><a href="#File-GetMdcSize">H5Fget_mdc_size</a>
+ <li><a href="#File-ResetMdcHitRateStats">H5Freset_mdc_hit_rate_stats</a>
+ <li><a href="#File-SetMdcConfig">H5Fset_mdc_config</a>
</ul>
</td></tr>
</table>
@@ -109,38 +119,43 @@ documented below.
<table border="0">
<tr>
<td valign="top">
- <ul>
+ <ul>
<li><a href="#File-Close">H5Fclose</a>
<li><a href="#File-Create">H5Fcreate</a>
<li><a href="#File-Flush">H5Fflush</a>
<li><a href="#File-GetAccessPlist">H5Fget_access_plist</a>
<li><a href="#File-GetCreatePlist">H5Fget_create_plist</a>
<li><a href="#File-GetFilesize">H5Fget_filesize</a>
+ <li><a href="#File-GetFreeSpace">H5Fget_freespace</a>
</ul>
</td>
<td>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</td>
<td valign="top">
- <ul>
- <li><a href="#File-GetFreeSpace">H5Fget_freespace</a>
+ <ul>
+ <li><a href="#File-GetMdcConfig">H5Fget_mdc_config</a>
+ <li><a href="#File-GetMdcHitRate">H5Fget_mdc_hit_rate</a>
+ <li><a href="#File-GetMdcSize">H5Fget_mdc_size</a>
<li><a href="#File-GetName">H5Fget_name</a>
<li><a href="#File-GetObjCount">H5Fget_obj_count</a>
<li><a href="#File-GetObjIDs">H5Fget_obj_ids</a>
<li><a href="#File-GetVfdHandle">H5Fget_vfd_handle</a>
- </ul>
+ </ul>
</td>
<td>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</td>
<td valign="top">
- <ul>
+ <ul>
<li><a href="#File-IsHDF5">H5Fis_hdf5</a>
<li><a href="#File-Mount">H5Fmount</a>
<li><a href="#File-Open">H5Fopen</a>
<li><a href="#File-Reopen">H5Freopen</a>
+ <li><a href="#File-ResetMdcHitRateStats">H5Freset_mdc_hit_rate_stats</a>
+ <li><a href="#File-SetMdcConfig">H5Fset_mdc_config</a>
<li><a href="#File-Unmount">H5Funmount</a>
- </ul>
+ </ul>
</td>
</tr>
</table>
@@ -160,10 +175,10 @@ as the corresponding C function.
<li><a href="#File-Reopen">h5freopen_f</a>
<li><a href="#File-Close">h5fclose_f</a>
<li><a href="#File-Flush">h5fflush_f</a>
+ <li><a href="#File-IsHDF5">h5fis_hdf5_f</a>
</ul>
</td><td>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</td><td valign=top>
<ul>
- <li><a href="#File-IsHDF5">h5fis_hdf5_f</a>
<li><a href="#File-Mount">h5fmount_f</a>
<li><a href="#File-Unmount">h5funmount_f</a>
<li><a href="#File-GetVfdHandle">h5fget_vfd_handle_f</a>
@@ -177,6 +192,11 @@ as the corresponding C function.
<li><a href="#File-GetName">h5fget_name_f</a>
<li><a href="#File-GetObjCount">h5fget_obj_count_f</a>
<li><a href="#File-GetObjIDs">h5fget_obj_ids_f</a>
+<!--<li><a href="#File-GetMdcConfig">H5Fget_mdc_config_f</a> -->
+<!--<li><a href="#File-GetMdcHitRate">H5Fget_mdc_hit_rate_f</a> -->
+<!--<li><a href="#File-GetMdcSize">H5Fget_mdc_size_f</a> -->
+<!--<li><a href="#File-ResetMdcHitRateStats">H5Freset_mdc_hit_rate_stats_f</a> -->
+<!--<li><a href="#File-SetMdcConfig">H5Fset_mdc_config_f</a> -->
</ul>
</td></tr>
</table>
@@ -234,25 +254,25 @@ as the corresponding C function.
<dt><strong>Parameters:</strong>
<ul><table>
<tr>
- <td valign="top"><em>hid_t</em>&nbsp;<code>file_id&nbsp;&nbsp;&nbsp;&nbsp;</code></td>
- <td valign="top">IN: Identifier of a file to terminate access to.</td></tr>
+ <td valign="top"><em>hid_t</em>&nbsp;<code>file_id&nbsp;&nbsp;&nbsp;&nbsp;</code></td>
+ <td valign="top">IN: Identifier of a file to terminate access to.</td></tr>
</table></ul>
<dt><strong>Returns:</strong>
<dd>Returns a non-negative value if successful;
otherwise returns a negative value.
<dt><strong>Fortran90 Interface:</strong> h5fclose_f
<dd>
- <pre>
+ <pre>
SUBROUTINE h5fclose_f(file_id, hdferr)
IMPLICIT NONE
INTEGER(HID_T), INTENT(IN) :: file_id ! File identifier
INTEGER, INTENT(OUT) :: hdferr ! Error code
! 0 on success and -1 on failure
END SUBROUTINE h5fclose_f
- </pre>
-
- <!--<dt><strong>Non-C API(s):</strong>
- <dd>
+ </pre>
+
+ <!--<dt><strong>Non-C API(s):</strong>
+ <dd>
<img src="Graphics/Java.gif">
<img src="Graphics/C++.gif">
@@ -328,10 +348,10 @@ END SUBROUTINE h5fclose_f
<dt><strong>Parameters:</strong>
<ul><table>
<tr>
- <td valign="top"><em>const&nbsp;char&nbsp;*</em><code>name&nbsp;&nbsp;&nbsp;&nbsp;</code></td>
+ <td valign="top"><em>const&nbsp;char&nbsp;*</em><code>name&nbsp;&nbsp;&nbsp;&nbsp;</code></td>
<td valign="top">IN: Name of the file to access.</td></tr>
<tr>
- <td valign="top"><em>uintn</em> <code>flags</code></td>
+ <td valign="top"><em>uintn</em> <code>flags</code></td>
<td valign="top">IN: File access flags. Allowable values are:
<ul><dl>
<dt><code>H5F_ACC_TRUNC</code>
@@ -347,12 +367,12 @@ END SUBROUTINE h5fclose_f
developers; <i>it is neither tested nor supported</i>
for use in applications.</td></tr>
<tr>
- <td valign="top"><em>hid_t</em>&nbsp;<code>create_id&nbsp;&nbsp;&nbsp;&nbsp;</code></td>
+ <td valign="top"><em>hid_t</em>&nbsp;<code>create_id&nbsp;&nbsp;&nbsp;&nbsp;</code></td>
<td valign="top">IN: File creation property list identifier, used when modifying
default file meta-data.
Use <code>H5P_DEFAULT</code> for default file creation properties.</td></tr>
<tr>
- <td valign="top"><em>hid_t</em> <code>access_id</code></td>
+ <td valign="top"><em>hid_t</em> <code>access_id</code></td>
<td valign="top">IN: File access property list identifier.
If parallel file access is desired, this is a collective
call according to the communicator stored in the
@@ -364,7 +384,7 @@ END SUBROUTINE h5fclose_f
otherwise returns a negative value.
<dt><strong>Fortran90 Interface:</strong> h5fcreate_f
<dd>
- <pre>
+ <pre>
SUBROUTINE h5fcreate_f(name, access_flags, file_id, hdferr, &
creation_prp, access_prp)
IMPLICIT NONE
@@ -390,10 +410,10 @@ SUBROUTINE h5fcreate_f(name, access_flags, file_id, hdferr, &
! specified its value is
! H5P_DEFAULT_F
END SUBROUTINE h5fcreate_f
- </pre>
-
- <!--<dt><strong>Non-C API(s):</strong>
- <dd>
+ </pre>
+
+ <!--<dt><strong>Non-C API(s):</strong>
+ <dd>
<img src="Graphics/Java.gif">
<img src="Graphics/C++.gif">
@@ -441,10 +461,10 @@ END SUBROUTINE h5fcreate_f
<dt><strong>Parameters:</strong>
<ul><table>
<tr>
- <td valign="top"><em>hid_t </em><code>object_id</code></td>
+ <td valign="top"><em>hid_t </em><code>object_id</code></td>
<td valign="top">IN: Identifier of object used to identify the file.</td></tr>
<tr>
- <td valign="top"><em>H5F_scope_t</em>&nbsp;<code>scope&nbsp;&nbsp;&nbsp;&nbsp;</code></td>
+ <td valign="top"><em>H5F_scope_t</em>&nbsp;<code>scope&nbsp;&nbsp;&nbsp;&nbsp;</code></td>
<td valign="top">IN: Specifies the scope of the flushing action.</td></tr>
</table></ul>
<dt><strong>Returns:</strong>
@@ -452,7 +472,7 @@ END SUBROUTINE h5fcreate_f
otherwise returns a negative value.
<dt><strong>Fortran90 Interface:</strong> h5fflush_f
<dd>
- <pre>
+ <pre>
SUBROUTINE h5fflush_f(obj_id, new_file_id, hdferr)
IMPLICIT NONE
INTEGER(HID_T), INTENT(IN) :: obj_id ! Object identifier
@@ -462,10 +482,10 @@ SUBROUTINE h5fflush_f(obj_id, new_file_id, hdferr)
INTEGER, INTENT(OUT) :: hdferr ! Error code
! 0 on success and -1 on failure
END SUBROUTINE h5fflush_f
- </pre>
-
- <!--<dt><strong>Non-C API(s):</strong>
- <dd>
+ </pre>
+
+ <!--<dt><strong>Non-C API(s):</strong>
+ <dd>
<img src="Graphics/Java.gif">
<img src="Graphics/C++.gif">
@@ -495,7 +515,7 @@ END SUBROUTINE h5fflush_f
<dt><strong>Parameters:</strong>
<ul><table>
<tr>
- <td valign="top"><em>hid_t</em>&nbsp;<code>file_id&nbsp;&nbsp;&nbsp;&nbsp;</code></td>
+ <td valign="top"><em>hid_t</em>&nbsp;<code>file_id&nbsp;&nbsp;&nbsp;&nbsp;</code></td>
<td valign="top">IN: Identifier of file to get access property list of</td></tr>
</table></ul>
<dt><strong>Returns:</strong>
@@ -503,7 +523,7 @@ END SUBROUTINE h5fflush_f
otherwise returns a negative value.
<dt><strong>Fortran90 Interface:</strong> h5fget_access_plist_f
<dd>
- <pre>
+ <pre>
SUBROUTINE h5fget_access_plist_f(file_id, fcpl_id, hdferr)
IMPLICIT NONE
@@ -512,10 +532,10 @@ SUBROUTINE h5fget_access_plist_f(file_id, fcpl_id, hdferr)
INTEGER, INTENT(OUT) :: hdferr ! Error code
! 0 on success and -1 on failure
END SUBROUTINE h5fget_access_plist_f
- </pre>
-
- <!--<dt><strong>Non-C API(s):</strong>
- <dd>
+ </pre>
+
+ <!--<dt><strong>Non-C API(s):</strong>
+ <dd>
<img src="Graphics/Java.gif">
<img src="Graphics/C++.gif">
@@ -548,7 +568,7 @@ END SUBROUTINE h5fget_access_plist_f
<dt><strong>Parameters:</strong>
<ul><table>
<dt>
- <td valign="top"><em>hid_t</em>&nbsp;<code>file_id&nbsp;&nbsp;&nbsp;&nbsp;</code></td>
+ <td valign="top"><em>hid_t</em>&nbsp;<code>file_id&nbsp;&nbsp;&nbsp;&nbsp;</code></td>
<td valign="top">IN: Identifier of the file to get creation property list of</td></tr>
</table></ul>
<dt><strong>Returns:</strong>
@@ -556,7 +576,7 @@ END SUBROUTINE h5fget_access_plist_f
otherwise returns a negative value.
<dt><strong>Fortran90 Interface:</strong> h5fget_create_plist_f
<dd>
- <pre>
+ <pre>
SUBROUTINE h5fget_create_plist_f(file_id, fcpl_id, hdferr)
IMPLICIT NONE
@@ -566,10 +586,10 @@ SUBROUTINE h5fget_create_plist_f(file_id, fcpl_id, hdferr)
INTEGER, INTENT(OUT) :: hdferr ! Error code
! 0 on success and -1 on failure
END SUBROUTINE h5fget_create_plist_f
- </pre>
-
- <!--<dt><strong>Non-C API(s):</strong>
- <dd>
+ </pre>
+
+ <!--<dt><strong>Non-C API(s):</strong>
+ <dd>
<img src="Graphics/Java.gif">
<img src="Graphics/C++.gif">
@@ -610,7 +630,7 @@ END SUBROUTINE h5fget_create_plist_f
otherwise returns a negative value.
<dt><strong>Fortran90 Interface:</strong> h5fget_freespace_f
<dd>
- <pre>
+ <pre>
SUBROUTINE h5fget_filesize_f(file_id, size, hdferr)
IMPLICIT NONE
@@ -619,10 +639,10 @@ SUBROUTINE h5fget_filesize_f(file_id, size, hdferr)
INTEGER, INTENT(OUT) :: hdferr ! Error code: 0 on success,
! -1 if fail
END SUBROUTINE h5fget_filesize_f
- </pre>
-
- <!--<dt><strong>Non-C API(s):</strong>
- <dd>
+ </pre>
+
+ <!--<dt><strong>Non-C API(s):</strong>
+ <dd>
<img src="Graphics/Java.gif">
<img src="Graphics/C++.gif">
@@ -641,7 +661,7 @@ END SUBROUTINE h5fget_filesize_f
<dd>Returns the amount of free space in a file.
<dt><strong>Description:</strong>
<dd>Given the identifier of an open file, <code>file_id</code>,
- <code>H5Fget_freespace</code> returns the amount of space that is
+ <code>H5Fget_freespace</code> returns the amount of space that is
unused by any objects in the file.
<p>
Currently, the HDF5 library only tracks free space in a file from a
@@ -651,7 +671,7 @@ END SUBROUTINE h5fget_filesize_f
<dt><strong>Parameters:</strong>
<ul><table>
<tr>
- <td valign="top"><em>hid_t</em>&nbsp;<code>file_id&nbsp;&nbsp;&nbsp;&nbsp;</code></td>
+ <td valign="top"><em>hid_t</em>&nbsp;<code>file_id&nbsp;&nbsp;&nbsp;&nbsp;</code></td>
<td valign="top">IN: Identifier of a currently-open HDF5 file</td></tr>
</table></ul>
<dt><strong>Returns:</strong>
@@ -662,7 +682,7 @@ END SUBROUTINE h5fget_filesize_f
otherwise returns a negative value.
<dt><strong>Fortran90 Interface:</strong> h5fget_freespace_f
<dd>
- <pre>
+ <pre>
SUBROUTINE h5fget_freespace_f(file_id, free_space, hdferr)
IMPLICIT NONE
@@ -671,16 +691,302 @@ SUBROUTINE h5fget_freespace_f(file_id, free_space, hdferr)
INTEGER, INTENT(OUT) :: hdferr ! Error code
! 0 on success and -1 on failure
END SUBROUTINE h5fget_freespace_f
- </pre>
-
- <!--<dt><strong>Non-C API(s):</strong>
- <dd>
+ </pre>
+
+ <!--<dt><strong>Non-C API(s):</strong>
+ <dd>
<img src="Graphics/Java.gif">
<img src="Graphics/C++.gif">
-->
</dl>
+<!-- NEW PAGE -->
+<!-- HEADER RIGHT "H5Fget_mdc_config" -->
+<hr>
+<dl>
+<dt><strong>Name:</strong> <a name="File-GetMdcConfig">H5Fget_mdc_config</a>
+<dt><strong>Signature:</strong>
+ <dd><em>herr_t</em> <code>H5Fget_mdc_config</code>(<em>hid_t</em>
+ <code>file_id</code>, <em>H5AC_cache_config_t *</em><code>config_ptr</code>)
+<dt><strong>Purpose:</strong>
+ <dd>Obtain current metadata cache configuration for target file.
+<dt><strong>Description:</strong>
+ <dd><code>H5Fget_mdc_config</code> loads the current metadata cache
+ configuration into the instance of <code>H5AC_cache_config_t</code>
+ pointed to by the <code>config_ptr</code> parameter.
+
+ <p>Note that the version field of *<code>config_ptr</code> must
+ be initialized --this allows the library to support old versions
+ of the <code>H5AC_cache_config_t</code> structure.
+
+ <p>See the overview of the metadata cache in the special topics section
+ of the user manual for details on metadata cache configuration.
+ If you haven't read and understood that documentation, the results
+ of this call will not make much sense.
+<dt><strong>Parameters:</strong>
+ <ul><table>
+ <tr>
+ <td valign="top"><em>hid_t</em>&nbsp;<code>file_id&nbsp;&nbsp;&nbsp;&nbsp;</code></td>
+ <td valign="top">IN: Identifier of the target file</td></tr>
+ <tr>
+ <td valign="top"><em>H5AC_cache_config_t&nbsp;*</em><code>config_ptr</code>&nbsp;&nbsp;&nbsp;&nbsp;</td>
+ <td valign="top">IN/OUT: Pointer to the instance of H5AC_cache_config_t
+ in which the current metadata cache configuration is to be reported.
+ The fields of this structure are discussed below:</td></tr>
+ <tr>
+ <td colspan="2">&nbsp;</td>
+ </tr>
+ <tr>
+ <td colspan="2"><strong>General configuration section:</strong></td>
+ </tr>
+ <tr>
+ <td valign="top"><em>int</em> <code>version</code>&nbsp;&nbsp;&nbsp;&nbsp;</td>
+ <td valign="top">IN: Integer field indicating the the version
+ of the H5AC_cache_config_t in use. This field should be
+ set to H5AC__CURR_CACHE_CONFIG_VERSION
+ (defined in H5ACpublic.h).</td></tr>
+ <tr>
+ <td valign="top"><em>hbool_t</em> <code>rpt_fcn_enabled</code>&nbsp;&nbsp;&nbsp;&nbsp;</td>
+ <td valign="top">OUT: Boolean flag indicating whether the adaptive
+ cache resize report function is enabled. This field should almost
+ always be set to FALSE. Since resize algorithm activity is reported
+ via stdout, it MUST be set to FALSE on Windows machines.
+ <p>The report function is not supported code, and can be
+ expected to change between versions of the library.
+ Use it at your own risk.</td></tr>
+ <tr>
+ <td valign="top"><em>hbool_t</em> <code>set_initial_size</code>&nbsp;&nbsp;&nbsp;&nbsp;</td>
+ <td valign="top">OUT: Boolean flag indicating whether the cache
+ should be created with a user specified initial maximum size.
+ <p>If the configuration is loaded from the cache,
+ this flag will always be FALSE.</td></tr>
+ <tr>
+ <td valign="top"><em>size_t</em> <code>initial_size</code>&nbsp;&nbsp;&nbsp;&nbsp;</td>
+ <td valign="top">OUT: Initial maximum size of the cache in bytes,
+ if applicable.
+ <p>If the configuration is loaded from the cache, this
+ field will contain the cache maximum size as of the
+ time of the call.</td></tr>
+ <tr>
+ <td valign="top"><em>double</em> <code>min_clean_fraction</code>&nbsp;&nbsp;&nbsp;&nbsp;</td>
+ <td valign="top">OUT: This field is only used in the parallel
+ version of the library. It specifies the minimum fraction
+ of the cache that must be kept either clean or
+ empty when possible.</td></tr>
+ <tr>
+ <td valign="top"><em>size_t</em> <code>max_size</code>&nbsp;&nbsp;&nbsp;&nbsp;</td>
+ <td valign="top">OUT: Upper bound (in bytes) on the range of
+ values that the adaptive cache resize code can select as
+ the maximum cache size.</td></tr>
+ <tr>
+ <td valign="top"><em>size_t</em> <code>min_size</code>&nbsp;&nbsp;&nbsp;&nbsp;</td>
+ <td valign="top">OUT: Lower bound (in bytes) on the range
+ of values that the adaptive cache resize code can
+ select as the maximum cache size.</td></tr>
+ <tr>
+ <td valign="top"><em>long int</em> <code>epoch_length</code>&nbsp;&nbsp;&nbsp;&nbsp;</td>
+ <td valign="top">OUT: Number of cache accesses between runs
+ of the adaptive cache resize code.</td></tr>
+ <tr>
+ <td colspan="2">&nbsp;</td>
+ </tr>
+ <tr>
+ <td colspan="2"><strong>Increment configuration section:</strong></td>
+ </tr>
+ <tr>
+ <td valign="top"><em>enum&nbsp;H5C_cache_incr_mode</em>&nbsp;<code>incr_mode</code>&nbsp;&nbsp;&nbsp;&nbsp;</td>
+ <td valign="top">OUT: Enumerated value indicating the operational
+ mode of the automatic cache size increase code. At present,
+ only the following values are legal:
+ <p>H5C_incr__off: Automatic cache size increase is disabled.
+ <p>H5C_incr__threshold: Automatic cache size increase is
+ enabled using the hit rate threshold algorithm.</td></tr>
+ <tr>
+ <td valign="top"><em>double</em> <code>lower_hr_threshold</code>&nbsp;&nbsp;&nbsp;&nbsp;</td>
+ <td valign="top">OUT: Hit rate threshold used in the hit rate
+ threshold cache size increase algorithm.</td></tr>
+ <tr>
+ <td valign="top"><em>double</em> <code>increment</code>&nbsp;&nbsp;&nbsp;&nbsp;</td>
+ <td valign="top">OUT: The factor by which the current maximum
+ cache size is multiplied to obtain an initial new maximum cache
+ size if a size increase is triggered in the hit rate
+ threshold cache size increase algorithm.</td></tr>
+ <tr>
+ <td valign="top"><em>hbool_t</em> <code>apply_max_increment</code>&nbsp;&nbsp;&nbsp;&nbsp;</td>
+ <td valign="top">OUT: Boolean flag indicating whether an upper
+ limit will be applied to the size of cache size increases.</td></tr>
+ <tr>
+ <td valign="top"><em>size_t</em> <code>max_increment</code>&nbsp;&nbsp;&nbsp;&nbsp;</td>
+ <td valign="top">OUT: The maximum number of bytes by which the
+ maximum cache size can be increased in a single step -- if
+ applicable.</td></tr>
+ <tr>
+ <td colspan="2">&nbsp;</td>
+ </tr>
+ <tr>
+ <td colspan="2"><strong>Decrement configuration section:</strong></td>
+ </tr>
+ <tr>
+ <td valign="top"><em>enum&nbsp;H5C_cache_decr_mode</em>&nbsp;<code>decr_mode</code>&nbsp;&nbsp;&nbsp;&nbsp;</td>
+ <td valign="top">OUT: Enumerated value indicating the operational
+ mode of the automatic cache size decrease code. At present,
+ the following values are legal:
+ <p>H5C_decr__off: Automatic cache size decrease is disabled,
+ and the remaining decrement fields are ignored.
+ <p>H5C_decr__threshold: Automatic cache size decrease is
+ enabled using the hit rate threshold algorithm.
+ <p>H5C_decr__age_out: Automatic cache size decrease is enabled
+ using the ageout algorithm.
+ <p>H5C_decr__age_out_with_threshold: Automatic cache size
+ decrease is enabled using the ageout with hit rate
+ threshold algorithm</td></tr>
+ <tr>
+ <td valign="top"><em>double</em> <code>upper_hr_threshold</code>&nbsp;&nbsp;&nbsp;&nbsp;</td>
+ <td valign="top">OUT: Upper hit rate threshold. This value is only
+ used if the decr_mode is either H5C_decr__threshold or
+ H5C_decr__age_out_with_threshold.</td></tr>
+ <tr>
+ <td valign="top"><em>double</em> <code>decrement</code>&nbsp;&nbsp;&nbsp;&nbsp;</td>
+ <td valign="top">OUT: Factor by which the current max cache size
+ is multiplied to obtain an initial value for the new cache
+ size when cache size reduction is triggered in the hit rate
+ threshold cache size reduction algorithm.</td></tr>
+ <tr>
+ <td valign="top"><em>hbool_t</em> <code>apply_max_decrement</code>&nbsp;&nbsp;&nbsp;&nbsp;</td>
+ <td valign="top">OUT: Boolean flag indicating whether an upper
+ limit should be applied to the size of cache size
+ decreases.</td></tr>
+ <tr>
+ <td valign="top"><em>size_t</em> <code>max_decrement</code>&nbsp;&nbsp;&nbsp;&nbsp;</td>
+ <td valign="top">OUT: The maximum number of bytes by which cache
+ size can be decreased if any single step, if applicable.</td></tr>
+ <tr>
+ <td valign="top"><em>int</em> <code>epochs_before_eviction</code>&nbsp;&nbsp;&nbsp;&nbsp;</td>
+ <td valign="top">OUT: The minimum number of epochs that an entry
+ must reside unaccessed in cache before being evicted under
+ either of the ageout cache size reduction algorithms.</td></tr>
+ <tr>
+ <td valign="top"><em>hbool_t</em> <code>apply_empty_reserve</code>&nbsp;&nbsp;&nbsp;&nbsp;</td>
+ <td valign="top">OUT: Boolean flag indicating whether an empty
+ reserve should be maintained under either of the ageout
+ cache size reduction algorithms.</td></tr>
+ <tr>
+ <td valign="top"><em>double</em> <code>empty_reserve</code>&nbsp;&nbsp;&nbsp;&nbsp;</td>
+ <td valign="top">OUT: Empty reserve for use with the ageout
+ cache size reduction algorithms, if applicable.</td></tr>
+
+ </table></ul>
+<dt><strong>Returns:</strong>
+ <dd>Returns a non-negative value if successful; otherwise returns a negative value.
+
+</dl>
+
+<!-- NEW PAGE -->
+<!-- HEADER RIGHT "H5Fget_mdc_hit_rate" -->
+<hr>
+<dl>
+<dt><strong>Name:</strong> <a name="File-GetMdcHitRate">H5Fget_mdc_hit_rate</a>
+<dt><strong>Signature:</strong>
+ <dd><em>herr_t</em> <code>H5Fget_mdc_hit_rate</code>(<em>hid_t</em>
+ <code>file_id</code>, <em>double *</em><code>hit_rate_ptr</code>)
+<dt><strong>Purpose:</strong>
+ <dd>Obtain target file's metadata cache hit rate.
+<dt><strong>Description:</strong>
+ <dd>H5Fget_mdc_hit_rate queries the metadata cache of the target
+ file to obtain its hit rate (cache hits / (cache hits + cache misses))
+ since the last time hit rate statistics were reset. If the cache has
+ not been accessed since the last time the hit rate stats were reset,
+ the hit rate is defined to be 0.0.
+ <p>The hit rate stats can be reset either manually (via
+ H5Freset_mdc_hit_rate_stats()), or automatically. If the cache's
+ adaptive resize code is enabled, the hit rate stats will be reset
+ once per epoch. If they are reset manually as well,
+ the cache may behave oddly.
+ <p>See the overview of the metadata cache in the special
+ topics section of the user manual for details on the metadata
+ cache and its adaptive resize algorithms.
+<dt><strong>Parameters:</strong>
+ <ul><table>
+ <tr>
+ <td valign="top"><em>hid_t</em> <code>file_id</code>
+ &nbsp;&nbsp;&nbsp;&nbsp;</td>
+ <td valign="top">IN: Identifier of the target file.</td></tr>
+ <tr>
+ <td valign="top"><em>double&nbsp;*</em>&nbsp;<code>hit_rate_ptr</code>
+ &nbsp;&nbsp;&nbsp;&nbsp;</td>
+ <td valign="top">OUT: Pointer to the double in which the
+ hit rate is returned. Note that *<code>hit_rate_ptr</code> is
+ undefined if the API call fails.</td></tr>
+ </table></ul>
+<dt><strong>Returns:</strong>
+ <dd>Returns a non-negative value if successful; otherwise
+ returns a negative value.
+
+</dl>
+
+<!-- NEW PAGE -->
+<!-- HEADER RIGHT "H5Fget_mdc_size" -->
+<hr>
+<dl>
+<dt><strong>Name:</strong> <a name="File-GetMdcSize">H5Fget_mdc_size</a>
+<dt><strong>Signature:</strong>
+ <dd><em>herr_t</em> <code>H5Fget_mdc_size</code>(<em>hid_t</em> <code>file_id</code>,
+ <em>size_t *</em><code>max_size_ptr</code>,
+ <em>size_t *</em><code>min_clean_size_ptr</code>,
+ <em>size_t *</em><code>cur_size_ptr</code>,
+ <em>int *</em><code>cur_num_entries_ptr</code>)
+<dt><strong>Purpose:</strong>
+ <dd>Obtain current metadata cache size data for specified file.
+<dt><strong>Description:</strong>
+ <dd>H5Fget_mdc_size queries the metadata cache of the target file
+ for the desired size information, and returns this information in
+ the locations indicated by the pointer parameters. If any pointer
+ parameter is NULL, the associated data is not returned.
+ <p>If the API call fails, the values returned via the pointer
+ parameters are undefined.
+ <p>If adaptive cache resizing is enabled, the cache maximum size
+ and minimum clean size may change at the end of each epoch. Current
+ size and current number of entries can change on each cache access.
+ <p>Current size can exceed maximum size under certain conditions.
+ See the overview of the metadata cache in the special topics
+ section of the user manual for a discussion of this.
+<dt><strong>Parameters:</strong>
+ <ul><table>
+ <tr>
+ <td valign="top"><em>hid_t</em> <code>file_id</code>
+ &nbsp;&nbsp;&nbsp;&nbsp;</td>
+ <td valign="top">IN: Identifier of the target file.</td></tr>
+ <tr>
+ <td valign="top"><em>size_t *</em><code>max_size_ptr</code>
+ &nbsp;&nbsp;&nbsp;&nbsp;</td>
+ <td valign="top">OUT: Pointer to the location in which the
+ current cache maximum size is to be returned, or NULL if
+ this datum is not desired.</td></tr>
+ <tr>
+ <td valign="top"><em>size_t&nbsp;*</em><code>min_clean_size_ptr</code>
+ &nbsp;&nbsp;&nbsp;&nbsp;</td>
+ <td valign="top">OUT: Pointer to the location in which the
+ current cache minimum clean size is to be returned, or
+ NULL if that datum is not desired.</td></tr>
+ <tr>
+ <td valign="top"><em>size_t *</em><code>cur_size_ptr</code>
+ &nbsp;&nbsp;&nbsp;&nbsp;</td>
+ <td valign="top">OUT: Pointer to the location in which the
+ current cache size is to be returned, or NULL if that
+ datum is not desired.</td></tr>
+ <tr>
+ <td valign="top"><em>int&nbsp;*</em><code>cur_num_entries_ptr</code>
+ &nbsp;&nbsp;&nbsp;&nbsp;</td>
+ <td valign="top">OUT: Pointer to the location in which the
+ current number of entries in the cache is to be returned,
+ or NULL if that datum is not desired.</td></tr>
+ </table></ul>
+<dt><strong>Returns:</strong>
+ <dd>Returns a non-negative value if successful; otherwise returns a
+ negative value.
+
+</dl>
<!-- NEW PAGE -->
<!-- HEADER RIGHT "H5Fget_name" -->
@@ -735,7 +1041,7 @@ END SUBROUTINE h5fget_freespace_f
otherwise returns a negative value.
<dt><strong>Fortran90 Interface:</strong> h5fget_name_f
<dd>
- <pre>
+ <pre>
SUBROUTINE h5fget_name_f(obj_id, buf, size, hdferr)
IMPLICIT NONE
@@ -745,9 +1051,9 @@ SUBROUTINE h5fget_name_f(obj_id, buf, size, hdferr)
INTEGER, INTENT(OUT) :: hdferr ! Error code: 0 on success,
! -1 if fail
END SUBROUTINE h5fget_name_f
- </pre>
-
- <!--<dt><strong>Non-C API(s):</strong>
+ </pre>
+
+ <!--<dt><strong>Non-C API(s):</strong>
<dd>
<img src="Graphics/Java.gif">
@@ -819,11 +1125,11 @@ END SUBROUTINE h5fget_name_f
<dt><strong>Parameters:</strong>
<ul><table>
<tr>
- <td valign="top"><em>hid_t</em> <code>file_id</code></td>
+ <td valign="top"><em>hid_t</em> <code>file_id</code></td>
<td valign="top">IN: Identifier of a currently-open HDF5 file or
<code>H5F_OBJ_ALL</code> for all currently-open HDF5 files.</td></tr>
<tr>
- <td valign="top"><em>unsigned&nbsp;int</em>&nbsp;<code>types&nbsp;&nbsp;&nbsp;&nbsp;</code></td>
+ <td valign="top"><em>unsigned&nbsp;int</em>&nbsp;<code>types&nbsp;&nbsp;&nbsp;&nbsp;</code></td>
<td valign="top">IN: Type of object for which identifiers are to be returned.</td></tr>
</table></ul>
<dt><strong>Returns:</strong>
@@ -831,7 +1137,7 @@ END SUBROUTINE h5fget_name_f
otherwise returns a negative value.
<dt><strong>Fortran90 Interface:</strong> h5fget_obj_count_f
<dd>
- <pre>
+ <pre>
SUBROUTINE h5fget_obj_count_f(file_id, obj_type, obj_count, hdferr)
IMPLICIT NONE
@@ -846,9 +1152,9 @@ SUBROUTINE h5fget_obj_count_f(file_id, obj_type, obj_count, hdferr)
INTEGER, INTENT(OUT) :: hdferr ! Error code
! 0 on success and -1 on failure
END SUBROUTINE h5fget_obj_count_f
- </pre>
-
- <!--<dt><strong>Non-C API(s):</strong>
+ </pre>
+
+ <!--<dt><strong>Non-C API(s):</strong>
<dd>
<img src="Graphics/Java.gif">
@@ -888,18 +1194,18 @@ END SUBROUTINE h5fget_obj_count_f
<dt><strong>Parameters:</strong>
<ul><table>
<tr>
- <td valign="top"><em>hid_t</em> <code>file_id</code></td>
+ <td valign="top"><em>hid_t</em> <code>file_id</code></td>
<td valign="top">IN: Identifier of a currently-open HDF5 file or
<code>H5F_OBJ_ALL</code> for all currently-open HDF5 files.</td></tr>
<tr>
- <td valign="top"><em>unsigned int</em> <code>types</code></td>
+ <td valign="top"><em>unsigned int</em> <code>types</code></td>
<td valign="top">IN: Type of object for which identifiers are to be returned.</td></tr>
<tr>
- <td valign="top"><em>int</em> <code>max_objs</code></td>
+ <td valign="top"><em>int</em> <code>max_objs</code></td>
<td valign="top">IN: Maximum number of object identifiers to place into
- <code>obj_id_list</code>.</td></tr>
+ <code>obj_id_list</code>.</td></tr>
<tr>
- <td valign="top"><em>hid_t&nbsp;*</em><code>obj_id_list&nbsp;&nbsp;&nbsp;&nbsp;</code></td>
+ <td valign="top"><em>hid_t&nbsp;*</em><code>obj_id_list&nbsp;&nbsp;&nbsp;&nbsp;</code></td>
<td valign="top">OUT: Pointer to the returned list of open object identifiers.</td></tr>
</table></ul>
<dt><strong>Returns:</strong>
@@ -907,7 +1213,7 @@ END SUBROUTINE h5fget_obj_count_f
otherwise returns a negative value.
<dt><strong>Fortran90 Interface:</strong> h5fget_obj_ids_f
<dd>
- <pre>
+ <pre>
SUBROUTINE h5fget_obj_ids_f(file_id, obj_type, max_objs, obj_ids, hdferr)
IMPLICIT NONE
@@ -926,9 +1232,9 @@ SUBROUTINE h5fget_obj_ids_f(file_id, obj_type, max_objs, obj_ids, hdferr)
INTEGER, INTENT(OUT) :: hdferr ! Error code
! 0 on success and -1 on failure
END SUBROUTINE h5fget_obj_ids_f
- </pre>
-
- <!--<dt><strong>Non-C API(s):</strong>
+ </pre>
+
+ <!--<dt><strong>Non-C API(s):</strong>
<dd>
<img src="Graphics/Java.gif">
@@ -963,20 +1269,20 @@ END SUBROUTINE h5fget_obj_ids_f
<dt><strong>Parameters:</strong>
<ul><table>
<tr>
- <td valign="top"><em>hid_t</em> <code>file_id</code></td>
+ <td valign="top"><em>hid_t</em> <code>file_id</code></td>
<td valign="top">IN: Identifier of the file to be queried.</td></tr>
<tr>
- <td valign="top"><em>hid_t</em> <code>fapl_id</code></td>
+ <td valign="top"><em>hid_t</em> <code>fapl_id</code></td>
<td valign="top">IN: File access property list identifier.
For most drivers, the value will be <code>H5P_DEFAULT</code>.
- For the <code>FAMILY</code> or <code>MULTI</code> drivers,
- this value should be defined through the property list
- functions:
- <code>H5Pset_family_offset</code> for the <code>FAMILY</code>
- driver and <code>H5Pset_multi_type</code> for the
- <code>MULTI</code> driver.</td></tr>
- <tr>
- <td valign="top"><em>void&nbsp;*</em><code>file_handle&nbsp;&nbsp;&nbsp;&nbsp;</code></td>
+ For the <code>FAMILY</code> or <code>MULTI</code> drivers,
+ this value should be defined through the property list
+ functions:
+ <code>H5Pset_family_offset</code> for the <code>FAMILY</code>
+ driver and <code>H5Pset_multi_type</code> for the
+ <code>MULTI</code> driver.</td></tr>
+ <tr>
+ <td valign="top"><em>void&nbsp;*</em><code>file_handle&nbsp;&nbsp;&nbsp;&nbsp;</code></td>
<td valign="top">OUT: Pointer to the file handle being used by
the low-level virtual file driver.</td></tr>
</table></ul>
@@ -987,12 +1293,12 @@ END SUBROUTINE h5fget_obj_ids_f
<dd>None.
<!--
- <pre>
+ <pre>
SUBROUTINE
- </pre>
--->
-
- <!--<dt><strong>Non-C API(s):</strong>
+ </pre>
+-->
+
+ <!--<dt><strong>Non-C API(s):</strong>
<dd>
<img src="Graphics/Java.gif">
@@ -1016,7 +1322,7 @@ SUBROUTINE
<dt><strong>Parameters:</strong>
<ul><table>
<tr>
- <td valign="top"><em>const&nbsp;char&nbsp;*</em><code>name&nbsp;&nbsp;&nbsp;&nbsp;</code></td>
+ <td valign="top"><em>const&nbsp;char&nbsp;*</em><code>name&nbsp;&nbsp;&nbsp;&nbsp;</code></td>
<td valign="top">IN: File name to check format.</td></tr>
</table></ul>
<dt><strong>Returns:</strong>
@@ -1025,7 +1331,7 @@ SUBROUTINE
Otherwise returns a negative value.
<dt><strong>Fortran90 Interface:</strong> h5fis_hdf5_f
<dd>
- <pre>
+ <pre>
SUBROUTINE h5fis_hdf5_f(name, status, hdferr)
IMPLICIT NONE
CHARACTER(LEN=*), INTENT(IN) :: name ! Name of the file
@@ -1035,10 +1341,10 @@ SUBROUTINE h5fis_hdf5_f(name, status, hdferr)
INTEGER, INTENT(OUT) :: hdferr ! Error code
! 0 on success and -1 on failure
END SUBROUTINE h5fis_hdf5_f
- </pre>
-
- <!--<dt><strong>Non-C API(s):</strong>
- <dd>
+ </pre>
+
+ <!--<dt><strong>Non-C API(s):</strong>
+ <dd>
<img src="Graphics/Java.gif">
<img src="Graphics/C++.gif">
@@ -1069,19 +1375,19 @@ END SUBROUTINE h5fis_hdf5_f
<dt><strong>Parameters:</strong>
<ul><table>
<tr>
- <td valign="top"><em>hid_t</em> <code>loc_id</code></td>
+ <td valign="top"><em>hid_t</em> <code>loc_id</code></td>
<td valign="top">IN: Identifier for of file or group in
which <code>name</code> is defined.</td>
<tr>
- <td valign="top"><em>const&nbsp;char&nbsp;*</em><code>name&nbsp;&nbsp;&nbsp;&nbsp;</code></td>
+ <td valign="top"><em>const&nbsp;char&nbsp;*</em><code>name&nbsp;&nbsp;&nbsp;&nbsp;</code></td>
<td valign="top">IN: Name of the group onto which the
file specified by <code>child_id</code>
is to be mounted.</td>
<tr>
- <td valign="top"><em>hid_t</em> <code>child_id</code></td>
+ <td valign="top"><em>hid_t</em> <code>child_id</code></td>
<td valign="top">IN: Identifier of the file to be mounted.</td>
<tr>
- <td valign="top"><em>hid_t</em> <code>plist_id</code></td>
+ <td valign="top"><em>hid_t</em> <code>plist_id</code></td>
<td valign="top">IN: Identifier of the property list to be used.</td>
</table></ul>
<dt><strong>Returns:</strong>
@@ -1089,7 +1395,7 @@ END SUBROUTINE h5fis_hdf5_f
otherwise returns a negative value.
<dt><strong>Fortran90 Interface:</strong> h5fmount_f
<dd>
- <pre>
+ <pre>
SUBROUTINE h5fmount_f(loc_id, name, child_id, hdferr)
IMPLICIT NONE
INTEGER(HID_T), INTENT(IN) :: loc_id ! File or group identifier
@@ -1098,9 +1404,9 @@ SUBROUTINE h5fmount_f(loc_id, name, child_id, hdferr)
INTEGER, INTENT(OUT) :: hdferr ! Error code
! 0 on success and -1 on failure
END SUBROUTINE h5fmount_f
- </pre>
-
- <!--<dt><strong>Non-C API(s):</strong>
+ </pre>
+
+ <!--<dt><strong>Non-C API(s):</strong>
<dd>
<img src="Graphics/Java.gif">
@@ -1173,10 +1479,10 @@ END SUBROUTINE h5fmount_f
<dt><strong>Parameters:</strong>
<ul><table>
<tr>
- <td valign="top"><em>const&nbsp;char&nbsp;*</em><code>name&nbsp;&nbsp;&nbsp;&nbsp;</code></td>
+ <td valign="top"><em>const&nbsp;char&nbsp;*</em><code>name&nbsp;&nbsp;&nbsp;&nbsp;</code></td>
<td valign="top">IN: Name of the file to access.</td></tr>
<tr>
- <td valign="top"><em>unsigned</em> <code>flags</code></td>
+ <td valign="top"><em>unsigned</em> <code>flags</code></td>
<td valign="top">IN: File access flags. Allowable values are:
<ul><dl>
<dt><code>H5F_ACC_RDWR</code>
@@ -1193,7 +1499,7 @@ END SUBROUTINE h5fmount_f
</ul></td></tr>
<!-- NEW PAGE -->
<tr>
- <td valign="top"><em>hid_t</em>&nbsp;<code>access_id&nbsp;&nbsp;&nbsp;&nbsp;</code></td>
+ <td valign="top"><em>hid_t</em>&nbsp;<code>access_id&nbsp;&nbsp;&nbsp;&nbsp;</code></td>
<td valign="top">IN: Identifier for the file access properties list.
If parallel file access is desired, this is a collective
call according to the communicator stored in the
@@ -1205,7 +1511,7 @@ END SUBROUTINE h5fmount_f
otherwise returns a negative value.
<dt><strong>Fortran90 Interface:</strong> h5fopen_f
<dd>
- <pre>
+ <pre>
SUBROUTINE h5fopen_f(name, access_flags, file_id, hdferr, &
access_prp)
IMPLICIT NONE
@@ -1221,10 +1527,10 @@ SUBROUTINE h5fopen_f(name, access_flags, file_id, hdferr, &
! File access property list
! identifier
END SUBROUTINE h5fopen_f
- </pre>
-
- <!--<dt><strong>Non-C API(s):</strong>
- <dd>
+ </pre>
+
+ <!--<dt><strong>Non-C API(s):</strong>
+ <dd>
<img src="Graphics/Java.gif">
<img src="Graphics/C++.gif">
@@ -1261,7 +1567,7 @@ END SUBROUTINE h5fopen_f
<dt><strong>Parameters:</strong>
<ul><table>
<tr>
- <td valign="top"><em>hid_t</em>&nbsp;<code>file_id&nbsp;&nbsp;&nbsp;&nbsp;</code></td>
+ <td valign="top"><em>hid_t</em>&nbsp;<code>file_id&nbsp;&nbsp;&nbsp;&nbsp;</code></td>
<td valign="top">IN: Identifier of a file for which an additional identifier
is required.</td></tr>
</table></ul>
@@ -1270,7 +1576,7 @@ END SUBROUTINE h5fopen_f
otherwise returns a negative value.
<dt><strong>Fortran90 Interface:</strong> h5freopen_f
<dd>
- <pre>
+ <pre>
SUBROUTINE h5freopen_f(file_id, new_file_id, hdferr)
IMPLICIT NONE
INTEGER(HID_T), INTENT(IN) :: file_id ! File identifier
@@ -1278,10 +1584,10 @@ SUBROUTINE h5freopen_f(file_id, new_file_id, hdferr)
INTEGER, INTENT(OUT) :: hdferr ! Error code
! 0 on success and -1 on failure
END SUBROUTINE h5freopen_f
- </pre>
-
- <!--<dt><strong>Non-C API(s):</strong>
- <dd>
+ </pre>
+
+ <!--<dt><strong>Non-C API(s):</strong>
+ <dd>
<img src="Graphics/Java.gif">
<img src="Graphics/C++.gif">
@@ -1289,6 +1595,268 @@ END SUBROUTINE h5freopen_f
</dl>
<!-- NEW PAGE -->
+<!-- HEADER RIGHT "H5Freset_mdc_hit_rate_stats" -->
+<hr>
+<dl>
+<dt><strong>Name:</strong> <a name="File-ResetMdcHitRateStats">H5Freset_mdc_hit_rate_stats</a>
+<dt><strong>Signature:</strong>
+ <dd><em>herr_t</em> <code>H5Freset_mdc_hit_rate_stats</code>(<em>hid_t</em>
+ <code>file_id</code>)
+<dt><strong>Purpose:</strong>
+ <dd>Reset hit rate statistics counters for the target file.
+<dt><strong>Description:</strong>
+ <dd>H5Freset_mdc_hit_rate_stats resets the hit rate statistics
+ counters in the metadata cache associated with the specified
+ file.
+ <p>If the adaptive cache resizing code is enabled, the hit
+ rate statistics are reset at the beginning of each epoch.
+ This API call allows you to do the same thing from your program.
+ <p>The adaptive cache resizing code may behave oddly if you use
+ this call when adaptive cache resizing is enabled. However,
+ the call should be useful if you choose to control metadata
+ cache size from your program.
+ <p>See the overview of the metadata cache in the special topics
+ section of the user manual for details of the metadata cache and
+ the adaptive cache resizing algorithms. If you haven't read,
+ understood, and thought about the material covered in that
+ documentation, you shouldn't be using this API call.
+<dt><strong>Parameters:</strong>
+ <ul><table>
+ <tr>
+ <td valign="top"><em>hid_t</em>&nbsp;<code>file_id&nbsp;&nbsp;&nbsp;&nbsp;</code></td>
+ <td valign="top">IN: Identifier of the target file.</td></tr>
+ </table></ul>
+<dt><strong>Returns:</strong>
+ <dd>Returns a non-negative value if successful; otherwise returns a
+ negative value.
+
+</dl>
+
+<!-- NEW PAGE -->
+<!-- HEADER RIGHT "H5Fset_mdc_config" -->
+<hr>
+<dl>
+<dt><strong>Name:</strong> <a name="File-SetMdcConfig">H5Fset_mdc_config</a>
+<dt><strong>Signature:</strong>
+ <dd><em>herr_t</em> <code>H5Fset_mdc_config</code>(<em>hid_t</em>
+ <code>file_id</code>, <em>H5AC_cache_config_t *</em><code>config_ptr</code>)
+<dt><strong>Purpose:</strong>
+ <dd>Attempt to configure metadata cache of target file.
+<dt><strong>Description:</strong>
+ <dd>H5Fset_mdc_config attempts to configure the file's metadata cache
+ according configuration supplied in *config_ptr.
+ <p>See the overview of the metadata cache in the special topics
+ section of the user manual for details on what is being configured.
+ If you haven't read and understood that documentation, you really
+ shouldn't be using this API call.
+<dt><strong>Parameters:</strong>
+ <ul><table>
+ <tr>
+ <td valign="top"><em>hid_t</em>&nbsp;<code>file_id</code>
+ &nbsp;&nbsp;&nbsp;&nbsp;</td>
+ <td valign="top">IN: Identifier of the target file</td></tr>
+ <tr>
+ <td valign="top"><em>H5AC_cache_config_t&nbsp;*</em><code>config_ptr</code>
+ &nbsp;&nbsp;&nbsp;&nbsp;</td>
+ <td valign="top">IN: Pointer to the instance of H5AC_cache_config_t
+ containing the desired configuration. The fields of this structure
+ are discussed below:</td></tr>
+ <tr>
+ <td colspan="2">&nbsp;</td>
+ </tr>
+ <tr>
+ <td colspan="2"><strong>General configuration section:</strong></td>
+ </tr>
+ <tr>
+ <td valign="top"><em>int</em> <code>version</code>
+ &nbsp;&nbsp;&nbsp;&nbsp;</td>
+ <td valign="top">IN: Integer field indicating the the version of
+ the H5AC_cache_config_t in use. This field should be set to
+ H5AC__CURR_CACHE_CONFIG_VERSION (defined in H5ACpublic.h).</td></tr>
+ <tr>
+ <td valign="top"><em>hbool_t</em> <code>rpt_fcn_enabled</code>
+ &nbsp;&nbsp;&nbsp;&nbsp;</td>
+ <td valign="top">IN: Boolean flag indicating whether the adaptive
+ cache resize report function is enabled. This field should almost
+ always be set to FALSE. Since resize algorithm activity is reported
+ via stdout, it MUST be set to FALSE on Windows machines.
+ <p>The report function is not supported code, and can be expected to
+ change between versions of the library. Use it at your own risk.</td></tr>
+ <tr>
+ <td valign="top"><em>hbool_t</em> <code>set_initial_size</code>
+ &nbsp;&nbsp;&nbsp;&nbsp;</td>
+ <td valign="top">IN: Boolean flag indicating whether the cache should be
+ forced to the user specified initial size.</td></tr>
+ <tr>
+ <td valign="top"><em>size_t</em> <code>initial_size</code>
+ &nbsp;&nbsp;&nbsp;&nbsp;</td>
+ <td valign="top">IN: If set_initial_size is TRUE, initial_size must
+ contains the desired initial size in bytes. This value must lie
+ in the closed interval [min_size, max_size]. (see below)</td></tr>
+ <tr>
+ <td valign="top"><em>double</em> <code>min_clean_fraction</code>
+ &nbsp;&nbsp;&nbsp;&nbsp;</td>
+ <td valign="top">IN: This field is only used in the parallel version
+ of the library. It specifies the minimum fraction of the cache that
+ must be kept either clean or empty.
+ <p>The value must lie in the interval [0.0, 1.0]. 0.25 is a good place
+ to start.</td></tr>
+ <tr>
+ <td valign="top"><em>size_t</em> <code>max_size</code>
+ &nbsp;&nbsp;&nbsp;&nbsp;</td>
+ <td valign="top">IN: Upper bound (in bytes) on the range of values
+ that the adaptive cache resize code can select as the maximum
+ cache size.</td></tr>
+ <tr>
+ <td valign="top"><em>size_t</em> <code>min_size</code>
+ &nbsp;&nbsp;&nbsp;&nbsp;</td>
+ <td valign="top">IN: Lower bound (in bytes) on the range of values
+ that the adaptive cache resize code can select as the maximum
+ cache size.</td></tr>
+ <tr>
+ <td valign="top"><em>long int</em> <code>epoch_length</code>
+ &nbsp;&nbsp;&nbsp;&nbsp;</td>
+ <td valign="top">IN: Number of cache accesses between runs of the
+ adaptive cache resize code. 50,000 is a good starting number.</td></tr>
+ <tr>
+ <td colspan="2">&nbsp;</td>
+ </tr>
+ <tr>
+ <td colspan="2"><strong>Increment configuration section:</strong></td>
+ </tr>
+ <tr>
+ <td valign="top"><em>enum&nbsp;H5C_cache_incr_mode</em>&nbsp;<code>incr_mode</code>
+ &nbsp;&nbsp;&nbsp;&nbsp;</td>
+ <td valign="top">IN: Enumerated value indicating the operational mode
+ of the automatic cache size increase code. At present, only two
+ values are legal:
+ <p>H5C_incr__off: Automatic cache size increase is disabled,
+ and the remaining increment fields are ignored.
+ <p>H5C_incr__threshold: Automatic cache size increase is enabled
+ using the hit rate threshold algorithm.</td></tr>
+ <tr>
+ <td valign="top"><em>double</em> <code>lower_hr_threshold</code>
+ &nbsp;&nbsp;&nbsp;&nbsp;</td>
+ <td valign="top">IN: Hit rate threshold used by the hit rate threshold
+ cache size increment algorithm.
+ <p>When the hit rate over an epoch is below this threshold and the
+ cache is full, the maximum size of the cache is multiplied by
+ increment (below), and then clipped as necessary to stay within
+ max_size, and possibly max_increment.
+ <p>This field must lie in the interval [0.0, 1.0]. 0.8 or 0.9
+ is a good starting point.</td></tr>
+ <tr>
+ <td valign="top"><em>double</em> <code>increment</code>
+ &nbsp;&nbsp;&nbsp;&nbsp;</td>
+ <td valign="top">IN: Factor by which the hit rate threshold cache
+ size increment algorithm multiplies the current cache max size
+ to obtain a tentative new cache size.
+ <p>The actual cache size increase will be clipped to satisfy the
+ max_size specified in the general configuration, and possibly
+ max_increment below.
+ <p>The parameter must be greater than or equal to 1.0 -- 2.0
+ is a reasonable value.
+ <p>If you set it to 1.0, you will effectively disable cache size
+ increases.</td></tr>
+ <tr>
+ <td valign="top"><em>hbool_t</em> <code>apply_max_increment</code>
+ &nbsp;&nbsp;&nbsp;&nbsp;</td>
+ <td valign="top">IN: Boolean flag indicating whether an upper limit
+ should be applied to the size of cache size increases.</td></tr>
+ <tr>
+ <td valign="top"><em>size_t</em> <code>max_increment</code>
+ &nbsp;&nbsp;&nbsp;&nbsp;</td>
+ <td valign="top">IN: Maximum number of bytes by which cache size can
+ be increased in a single step -- if applicable.</td></tr>
+ <tr>
+ <td colspan="2">&nbsp;</td>
+ </tr>
+ <tr>
+ <td colspan="2"><strong>Decrement configuration section:</strong></td>
+ </tr>
+ <tr>
+ <td valign="top"><em>enum&nbsp;H5C_cache_decr_mode</em>&nbsp;<code>decr_mode</code>
+ &nbsp;&nbsp;&nbsp;&nbsp;</td>
+ <td valign="top">IN: Enumerated value indicating the operational
+ mode of the automatic cache size decrease code. At present,
+ the following values are legal:
+ <p>H5C_decr__off: Automatic cache size decrease is disabled.
+ <p>H5C_decr__threshold: Automatic cache size decrease is
+ enabled using the hit rate threshold algorithm.
+ <p>H5C_decr__age_out: Automatic cache size decrease is enabled
+ using the ageout algorithm.
+ <p>H5C_decr__age_out_with_threshold: Automatic cache size
+ decrease is enabled using the ageout with hit rate threshold
+ algorithm</td></tr>
+ <tr>
+ <td valign="top"><em>double</em> <code>upper_hr_threshold</code>
+ &nbsp;&nbsp;&nbsp;&nbsp;</td>
+ <td valign="top">IN: Hit rate threshold for the hit rate threshold and
+ ageout with hit rate threshold cache size decrement algorithms.
+ <p>When decr_mode is H5C_decr__threshold, and the hit rate over a
+ given epoch exceeds the supplied threshold, the current maximum
+ cache size is multiplied by decrement to obtain a tentative new
+ (and smaller) maximum cache size.
+ <p>When decr_mode is H5C_decr__age_out_with_threshold, there is no
+ attempt to find and evict aged out entries unless the hit rate in
+ the previous epoch exceeded the supplied threshold.
+ <p>This field must lie in the interval [0.0, 1.0].
+ <p>For H5C_incr__threshold, .9995 or .99995 is a good place to start.
+ <p>For H5C_decr__age_out_with_threshold, .999 might be
+ more useful.</td></tr>
+ <tr>
+ <td valign="top"><em>double</em> <code>decrement</code>
+ &nbsp;&nbsp;&nbsp;&nbsp;</td>
+ <td valign="top">IN: In the hit rate threshold cache size decrease
+ algorithm, this parameter contains the factor by which the
+ current max cache size is multiplied to produce a tentative
+ new cache size.
+ <p>The actual cache size decrease will be clipped to satisfy the
+ min_size specified in the general configuration, and possibly
+ max_decrement below.
+ <p>The parameter must be be in the interval [0.0, 1.0].
+ <p>If you set it to 1.0, you will effectively disable cache size
+ decreases. 0.9 is a reasonable starting point.</td></tr>
+ <tr>
+ <td valign="top"><em>hbool_t</em> <code>apply_max_decrement</code>
+ &nbsp;&nbsp;&nbsp;&nbsp;</td>
+ <td valign="top">IN: Boolean flag indicating whether an upper limit
+ should be applied to the size of cache size decreases.</td></tr>
+ <tr>
+ <td valign="top"><em>size_t</em> <code>max_decrement</code>
+ &nbsp;&nbsp;&nbsp;&nbsp;</td>
+ <td valign="top">IN: Maximum number of bytes by which the maximum cache
+ size can be decreased in any single step -- if applicable.</td></tr>
+ <tr>
+ <td valign="top"><em>int</em> <code>epochs_before_eviction</code>
+ &nbsp;&nbsp;&nbsp;&nbsp;</td>
+ <td valign="top">IN: In the ageout based cache size reduction algorithms,
+ this field contains the minimum number of epochs an entry must remain
+ unaccessed in cache before the cache size reduction algorithm tries to
+ evict it. 3 is a reasonable value.</td></tr>
+ <tr>
+ <td valign="top"><em>hbool_t</em> <code>apply_empty_reserve</code>
+ &nbsp;&nbsp;&nbsp;&nbsp;</td>
+ <td valign="top">IN: Boolean flag indicating whether the ageout based
+ decrement algorithms will maintain a empty reserve when decreasing
+ cache size.</td></tr>
+ <tr>
+ <td valign="top"><em>double</em> <code>empty_reserve</code>
+ &nbsp;&nbsp;&nbsp;&nbsp;</td>
+ <td valign="top">IN: Empty reserve as a fraction of maximum cache
+ size if applicable.
+ <p>When so directed, the ageout based algorithms will not decrease
+ the maximum cache size unless the empty reserve can be met.
+ <p>The parameter must lie in the interval [0.0, 1.0].
+ 0.1 or 0.05 is a good place to start.</td></tr>
+ </table></ul>
+<dt><strong>Returns:</strong>
+ <dd>Returns a non-negative value if successful; otherwise returns a
+ negative value.
+
+</dl>
+
+<!-- NEW PAGE -->
<!-- HEADER RIGHT "H5Funmount" -->
<hr>
<dl>
@@ -1317,11 +1885,11 @@ END SUBROUTINE h5freopen_f
<dt><strong>Parameters:</strong>
<ul><table>
<tr>
- <td valign="top"><em>hid_t</em> <code>loc_id</code></td>
+ <td valign="top"><em>hid_t</em> <code>loc_id</code></td>
<td valign="top">IN: File or group identifier for the location at which
the specified file is to be unmounted.</td></tr>
<tr>
- <td valign="top"><em>const&nbsp;char&nbsp;*</em><code>name&nbsp;&nbsp;&nbsp;&nbsp;</code></td>
+ <td valign="top"><em>const&nbsp;char&nbsp;*</em><code>name&nbsp;&nbsp;&nbsp;&nbsp;</code></td>
<td valign="top">IN: Name of the mount point.</td></tr>
</table></ul>
<dt><strong>Returns:</strong>
@@ -1329,7 +1897,7 @@ END SUBROUTINE h5freopen_f
otherwise returns a negative value.
<dt><strong>Fortran90 Interface:</strong> h5funmount_f
<dd>
- <pre>
+ <pre>
SUBROUTINE h5funmount_f(loc_id, name, child_id, hdferr)
IMPLICIT NONE
INTEGER(HID_T), INTENT(IN) :: loc_id ! File or group identifier
@@ -1337,10 +1905,10 @@ SUBROUTINE h5funmount_f(loc_id, name, child_id, hdferr)
INTEGER, INTENT(OUT) :: hdferr ! Error code
! 0 on success and -1 on failure
END SUBROUTINE h5funmount_f
- </pre>
-
- <!--<dt><strong>Non-C API(s):</strong>
- <dd>
+ </pre>
+
+ <!--<dt><strong>Non-C API(s):</strong>
+ <dd>
<img src="Graphics/Java.gif">
<img src="Graphics/C++.gif">
@@ -1365,6 +1933,11 @@ END SUBROUTINE h5funmount_f
And in this document, the
<a href="RM_H5Front.html">HDF5 Reference Manual</a>&nbsp;&nbsp;
<br>
+<a href="http://hdf.ncsa.uiuc.edu/HDF5/hdf5_hl/doc/RM_hdf5im.html">H5IM</a>&nbsp;&nbsp;
+<a href="http://hdf.ncsa.uiuc.edu/HDF5/hdf5_hl/doc/RM_hdf5lt.html">H5LT</a>&nbsp;&nbsp;
+<a href="http://hdf.ncsa.uiuc.edu/HDF5/hdf5_hl/doc/RM_hdf5pt.html">H5PT</a>&nbsp;&nbsp;
+<a href="http://hdf.ncsa.uiuc.edu/HDF5/hdf5_hl/doc/RM_hdf5tb.html">H5TB</a>&nbsp;&nbsp;
+<br>
<a href="RM_H5.html">H5</a>&nbsp;&nbsp;
<a href="RM_H5A.html">H5A</a>&nbsp;&nbsp;
<a href="RM_H5D.html">H5D</a>&nbsp;&nbsp;