| Commit message (Collapse) | Author | Age | Files | Lines |
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Fix writing variable-length datatype fill values for contiguous dataset
storage
Tested on:
Mac OS X/32 10.4.9 (amazon)
Linux/32 2.6 (chicago)
Linux/64 2.6 (chicago2)
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copyright notice.
Tested platform:
Kagiso only since it is only a comment block change. If it works in one
machine, it should work in all, I hope. Still need to check the parallel
build on copper.
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haven't
been run in a while, so many of the source files were updated with
tracing macros, etc. No code changes by me.
Tested on kagiso and smirom.
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Refactor generic property list initialization code to put property list
specific routines in property list modules, instead of scattered to the four
winds. Also, introduce property list class initialization objects, to make
adding new property list classes in the library easier.
Fix daily test failure by using H5Pget_elink_prefix() API routine instead
of looking at the "raw" generic property list information.
Tested on:
Mac OS X/32 10.4.8 (amazon)
FreeBSD/32 4.11 (sleipnir) w/threadsafe
Linux/32 2.4 (heping) w/C++ & FORTRAN
Linux/64 2.4 (mir) w/build-all & 1.6 compat
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Clean up some of the warnings on 64-bit Linux...
Tested on:
Linux/32 2.6 (chicago)
Linux/64 2.6 (chicago2)
Too minor to require h5committest
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Bug fix & new feature
Description:
Support variable-length datatypes in compact data storage and chunked
data storage, along with attributes.
Bug fix on the H5T_vlen_set_loc to allow for changing the file on a
variable-length datatype on disk.
Platforms tested:
FreeBSD 4.11 (sleipnir)
Linux 2.4
Can't h5committest right now, due to missing cache files.
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Description: Removed PABLO from the source
Solution:
Platforms tested: arabica with 64-bit, copper with parallel,
heping with GNU C and C++ and PGI fortran (but
I disabled hl, there is some weird problem only
on heping: F9XMODFLAG is not
propagated to the Makefile files
Misc. update:
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Bug Fix/Code Cleanup/Doc Cleanup/Optimization/Branch Sync :-)
Description:
Generally speaking, this is the "signed->unsigned" change to selections.
However, in the process of merging code back, things got stickier and stickier
until I ended up doing a big "sync the two branches up" operation. So... I
brought back all the "infrastructure" fixes from the development branch to the
release branch (which I think were actually making some improvement in
performance) as well as fixed several bugs which had been fixed in one branch,
but not the other.
I've also tagged the repository before making this checkin with the label
"before_signed_unsigned_changes".
Platforms tested:
FreeBSD 4.10 (sleipnir) w/parallel & fphdf5
FreeBSD 4.10 (sleipnir) w/threadsafe
FreeBSD 4.10 (sleipnir) w/backward compatibility
Solaris 2.7 (arabica) w/"purify options"
Solaris 2.8 (sol) w/FORTRAN & C++
AIX 5.x (copper) w/parallel & FORTRAN
IRIX64 6.5 (modi4) w/FORTRAN
Linux 2.4 (heping) w/FORTRAN & C++
Misc. update:
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Bug fix & code cleanup
Description:
More dataset cleanups to get to a point where we can fix the chunked I/O
bug.
Also fix a couple of errors in the recent file object resurrection changes
which should hopefully address the recent daily test failres (H5T.c)
Platforms tested:
FreeBSD 4.10 (sleipnir) w/parallel
Solaris 2.7 (arabica)
h5committest
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Bug fix/code cleanup
Description:
Clean up raw data I/O code to bundle the I/O parameters (dataset, DXPL ID,
etc) into a single struct to pass around through the dataset I/O routines,
since they are always passed together, until very near the bottom of the I/O
stack.
Platforms tested:
FreeBSD 4.10 (sleipnir) w/parallel
Solaris 2.7 (arabica)
IRIX64 6.5 (modi4)
h5committest
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Code cleanup
Description:
Clean up almost all warnings from Windows builds.
Platforms tested:
FreeBSD 4.10 (sleipnir) w/parallel
Too minor to require h5committest
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Code cleanup & small bug fix
Description:
Regenerate dependency files
Add htri_t as separate type from hbool_t for code tracing purposes.
Platforms tested:
FreeBSD 4.10 (sleipnir) w/parallel
too minor to require h5committest
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Code cleanup & minor optimization
Description:
Re-work the way interface initialization routines are specified in the
library to avoid the overhead of checking for them in routines where there is
no interface initialization routine. This cleans up warnings with gcc 3.4,
reduces the library binary size a bit (about 2-3%) and should speedup the
library's execution slightly.
Platforms tested:
FreeBSD 4.10 (sleipnir) w/gcc34
h5committest
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Code optimization
Description:
Use 'size_t' instead of 'hsize_t' to track the number of elements in
memory buffers, especially for type conversion.
Platforms tested:
Solaris 2.7 (arabica)
FreeBSD 4.10 (sleipnir) w/parallel
Too minor to require h5committest
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Code cleanup & optimization
Description:
Remove old structures that used a union to store information about the
dataspace extent and just store the information directly in the dataspace
extent itself.
Remove ifdef'd references to permutation ordering in dataspaces. We'll
definitely need more than this code if/when we implement this feature.
Change allocation of dataspace information from calloc() to malloc().
Platforms tested:
Solaris 2.7 (arabica)
FreeBSD 4.10 (sleipnir) w/parallel
Too minor to require h5committest
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Code optimization
Description:
Revised dataspace selections to use a more "object oriented" mechanism
to set the function pointers for each selection and selection iterator. This
reduces the amount and number of times that dataspace selection info has to
be copied.
Additionally, change hyperslab selection information to be dynamically
allocated instead of an inline struct.
Platforms tested:
Solaris 2.7 (arabica)
FreeBSD 4.10 (sleipnir) w/parallel
Too minor to require h5committest
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Refactor code
Description:
Move chunk and contiguous cached raw data from file information to dataset
information. This simplifies a number of internal interfaces, aligns the
code with it's purpose better and should allow more optimizations to the
chunked data I/O performance.
Platforms tested:
Solaris 2.7 (arabica)
FreeBSD 4.10 (sleipnir)
h5committest
Misc. update:
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Code optimization
Description:
Expand the use of macros to inline trivial function pointer lookup and
calls to reduce the overall number of functions invoked during normal operation
of the library.
Platforms tested:
Solaris 2.7 (arabica)
FreeBSD 4.9 (sleipnir) w/parallel
Too minor to require h5committest
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Code optimization
Description:
Don't make a separate allocation for the selection offset - incorporate
it into the selection structure as a fixed size array.
Platforms tested:
Solaris 2.7 (arabica)
FreeBSD 4.9 (sleipnir) w/parallel
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Code optimization
Description:
Further reduce the number of copies we make of a hyperslab selection for
chunked I/O, especially when we are only going to throw the old selection away
for a new one.
Platforms tested:
Solaris 2.7 (arabica)
FreeBSD 4.9 (sleipnir) w/parallel
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Code optimization
Description:
Reduce the number of times the number of elements in a selection is
computed.
Platforms tested:
Solaris 2.7 (arabica)
FreeBSD 4.9 (sleipnir) w/parallel
too minor to require h5committest
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Code optimization
Description:
Move the element size for the selection into the selection iterator instead
of always passing it as a parameter.
Also, eleminate another 64-bit multiply for "all" selections.
Platforms tested:
Solaris 2.7 (arabica)
FreeBSD 4.9 (sleipnir)
too minor to require h5committest
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Code optimization
Description:
Stop straddling the line and always use elements instead of bytes to
determine how how I/O to perform on a selection.
Platforms tested:
Solaris 2.7 (arabica)
FreeBSD 4.9 (sleipnir)
too minor to require h5committest
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Code optimization
Description:
Instead of dynamicly allocating various arrays for various pieces of
information about a selection or selection iterator, just use fixed size
array of size H5S_MAX_RANK (as the rest of the library does).
Platforms tested:
Solaris 2.7 (arabica)
FreeBSD 4.9 (sleipnir)
h5committest
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Code cleanup
Description:
Update null dataspace changes to try to write older version of dataspace
information whenever possible.
Refactor common code to only one location.
Allow I/O operations to succeed on null dataspaces.
Platforms tested:
FreeBSD 4.9 (sleipnir)
h5committest
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Code optimization
Description:
Eliminate memory allocations for I/O vectors when using the default
vector size.
Platforms tested:
Solaris 2.7 (arabica)
FreeBSD 4.9 (sleipnir)
too minor to require h5committest
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Code optimization
Description:
Eliminate unnecessary allocation and point at existing data structure
instead.
Platforms tested:
Solaris 2.7 (arabica)
too minor to require h5committest
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Code optimization
Description:
Fix H5S_select_copy so it doesn't call calloc() for allocating memory that
will be immediately overwritten.
Platforms tested:
Solaris 2.7 (arabica)
too small to require h5committest
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Code optimization
Description:
Move handling for free list arrays that have no maximum size to separate
set of routines and optimize computations for free list arrays with maximum
size to avoid re-computing sizes all the time.
Platforms tested:
h5committest
Solaris 2.7 (arabica)
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Code cleanup/optimization
Description:
Query property list values once, at the beginning of the I/O routines,
instead of querying the property list values multiple (lots!) of times in
lower level routines.
Solution:
Create "property list caches" for internal library queries of the property
list values.
Platforms tested:
IBM p690 (copper) w/parallel & fphdf5
h5committest
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Bug fix
Description:
Fixed bug in hyperslab iteration where certain combinations of flattened
and non-flattened dimensions would cause incorrect locations to be iterated
over.
Platforms tested:
FreeBSD 4.9 (sleipnir)
too minor to require h5committest
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Bug fix
Description:
Clean up a few allocations of zero-sized blocks that were detected with
the new free-list assertions.
Platforms tested:
FreeBSD 4.9 (sleipnir) w & w/o parallel
too minor to require h5committest
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Code cleanup
Description:
Clean up compiler warnings, especially the 'FUNC' variable not used which
comes out in production mode.
Solution:
Had to add a new FUNC_ENTER_NOAPI_NOINIT_NOFUNC macro for those non-API
functions which don't need the 'FUNC' variable defined. (This will be _so_
much easier when C99 is standard on all our supposed platforms, since it has a
__FUNC__ macro... )
Platforms tested:
FreeBSD 4.9 (sleipnir)
too minor for h5committest (although there were lots of files changed, the
change was minor in each one)
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Version update
Description:
Removed 1.4 compatibility code in the library.
Platforms tested:
FreeBSD 4.8 (sleipnir)
h5committest
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Update code
Description:
Move "PABLO_MASK" definition above header file inclusion to avoid problems
with inline functions in header files.
Platforms tested:
FreeBSD 4.8 (sleipnir)
h5committest
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Code cleanup
Description:
Update dependencies and tracing information
Platforms tested:
h5committested
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API tweak.
Description:
The H5Sget_select_bounds() API call was using hsize_t arrays for retrieving
the 'start' and 'end' coordinates, which is counter to the rest of the dataspace
API.
Solution:
Change the arrays to be hssize_t instead.
Platforms tested:
FreeBSD 4.8 (sleipnir) w/C++
FreeBSD 4.8 (sleipnir) w/parallel
h5committested
Misc. update:
Updated all docs for this change.
Added 1.4 compatibility #ifdef's
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Performance improment
Description:
Speed up chunked dataset I/O. This breaks down into several areas:
- Compute chunk selections in the file by using hyperslab operations
instead of iterating over each element in the selection.
- If the file and memory selections are the same shape, use the file
chunk selections to compute the memory chunk selections.
This required several additional dataspace, dataspace selection and
hyperslab routines.
Platforms tested:
h5committestted (although Fortran tests failed for some reason)
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New feature/enhancement
Description:
Chunked datasets are handled poorly in several circumstances involving
certain selections and chunks that are too large for the chunk cache and/or
chunks with filters, causing the chunk to be read from disk multiple times.
Solution:
Rearrange raw data I/O infrastructure to handle chunked datasets in a much
more friendly way by creating a selection in memory and on disk for each chunk
in a chunked dataset and performing all of the I/O on that chunk at one time.
There are still some scalability (the current code attempts to
create a selection for all the chunks in the dataset, instead of just the
chunks that are accessed, requiring portions of the istore.c and fillval.c
tests to be commented out) and performance issues, but checking this in will
allow the changes to be tested by a much wider audience while I address the
remaining issues.
Platforms tested:
h5committested, FreeBSD 4.8 (sleipnir) serial & parallel, Linux 2.4 (eirene)
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Code cleanup (sorta)
Description:
Updated to new copyright information as I browsed these files.
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Code cleanup
Description:
Reduce warnings on Windows
Platforms tested:
FreeBSD 4.7 (sleipnir)
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Code cleanup/new feature.
Description:
Split FUNC_LEAVE into API and non-API specific versions. This allows a
solution to compiling this branch with C++, as well as reducing the size
of the binaries produced.
Platforms tested:
FreeBSD 4.7 (sleipnir) w/serial, parallel (including MPE) & thread-safe
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Lots of performance improvements & a couple new internal API interfaces.
Description:
Performance Improvements:
- Cached file offset & length sizes in shared file struct, to avoid
constantly looking them up in the FCPL.
- Generic property improvements:
- Added "revision" number to generic property classes to speed
up comparisons.
- Changed method of storing properties from using a hash-table
to the TBBT routines in the library.
- Share the propery names between classes and the lists derived
from them.
- Removed redundant 'def_value' buffer from each property.
- Switching code to use a "copy on write" strategy for
properties in each list, where the properties in each list
are shared with the properties in the class, until a
property's value is changed in a list.
- Fixed error in layout code which was allocating too many buffers.
- Redefined public macros of the form (H5open()/H5check, <variable>)
internally to only be (<variable>), avoiding innumerable useless
calls to H5open() and H5check_version().
- Reuse already zeroed buffers in H5F_contig_fill instead of
constantly re-zeroing them.
- Don't write fill values if writing entire dataset.
- Use gettimeofday() system call instead of time() system when
checking the modification time of a dataset.
- Added reference counted string API and use it for tracking the
names of objects opening in a file (for the ID->name code).
- Removed redundant H5P_get() calls in B-tree routines.
- Redefine H5T datatype macros internally to the library, to avoid
calling H5check redundantly.
- Keep dataspace information for dataset locally instead of reading
from disk each time. Added new module to track open objects
in a file, to allow this (which will be useful eventually for
some FPH5 metadata caching issues).
- Remove H5AC_find macro which was inlining metadata cache lookups,
and call function instead.
- Remove redundant memset() calls from H5G_namei() routine.
- Remove redundant checking of object type when locating objects
in metadata cache and rely on the address only.
- Create default dataset object to use when default dataset creation
property list is used to create datasets, bypassing querying
for all the property list values.
- Use default I/O vector size when performing raw data with the
default dataset transfer property list, instead of querying for
I/O vector size.
- Remove H5P_DEFAULT internally to the library, replacing it with
more specific default property list based on the type of
property list needed.
- Remove redundant memset() calls in object header message (H5O*)
routines.
- Remove redunant memset() calls in data I/O routines.
- Split free-list allocation routines into malloc() and calloc()-
like routines, instead of one combined routine.
- Remove lots of indirection in H5O*() routines.
- Simplify metadata cache entry comparison routine (used when
flushing entire cache out).
- Only enable metadata cache statistics when H5AC_DEBUG is turned
on, instead of always tracking them.
- Simplify address comparison macro (H5F_addr_eq).
- Remove redundant metadata cache entry protections during dataset
creation by protecting the object header once and making all
the modifications necessary for the dataset creation before
unprotecting it.
- Reduce # of "number of element in extent" computations performed
by computing and storing the value during dataspace creation.
- Simplify checking for group location's file information, when file
has not been involving in file-mounting operations.
- Use binary encoding for modification time, instead of ASCII.
- Hoist H5HL_peek calls (to get information in a local heap)
out of loops in many group routine.
- Use static variable for iterators of selections, instead of
dynamically allocation them each time.
- Lookup & insert new entries in one step, avoiding traversing
group's B-tree twice.
- Fixed memory leak in H5Gget_objname_idx() routine (tangential to
performance improvements, but fixed along the way).
- Use free-list for reference counted strings.
- Don't bother copying object names into cached group entries,
since they are re-created when an object is opened.
The benchmark I used to measure these results created several thousand
small (2K) datasets in a file and wrote out the data for them. This is
Elena's "regular.c" benchmark.
These changes resulted in approximately ~4.3x speedup of the
development branch when compared to the previous code in the
development branch and ~1.4x speedup compared to the release
branch.
Additionally, these changes reduce the total memory used (code and
data) by the development branch by ~800KB, bringing the development
branch back into the same ballpark as the release branch.
I'll send out a more detailed description of the benchmark results
as a followup note.
New internal API routines:
Added "reference counted strings" API for tracking strings that get
used by multiple owners without duplicating the strings.
Added "ternary search tree" API for text->object mappings.
Platforms tested:
Tested h5committest {arabica (fortran), eirene (fortran, C++)
modi4 (parallel, fortran)}
Other platforms/configurations tested?
FreeBSD 4.7 (sleipnir) serial & parallel
Solaris 2.6 (baldric) serial
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Bug fix & code cleanup
Description:
Hyperslab code for collapsing dimensions was incorrectly collapsing
selections inappropriately when the fastest changing dimension couldn't
be collapsed.
Also add some more assertions which will make similar bugs easier to find.
Solution:
Break out of loop earlier.
Platforms tested:
modi4 (parallel), too small to triple check.
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Bug fix (ID 841)
Description:
h5dumptst (generating h5dump test files) failed with an assertion error
in H5S_select_iterate. H5S_select_iterate did not account for scalar
type that has rank=0, thus no dimension sizes.
Solution:
Put the assertion of valid sizes only after verify rank is larger than
0. (fix is coached by Quincey.)
Platforms tested:
Tested h5committest {arabica (fortran), eirene (fortran, C++)
modi4 (parallel, fortran)}? YES.
Misc. update:
Update release_docs/RELEASE for bug fixes, new features, etc. YES.
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Code cleanup
Description:
Switch order of test on array bounds to avoid reading data outside of array
Located by purify.
Platforms tested:
FreeBSD 4.6 (sleipnir) w/C++
Solaris 2.7 (arabica) w/C++
IRIX64 6.5 (modi4) w/parallel & fortran
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Bug fix/Code cleanup/New Feature
Description:
Correct problems with writing fill-values to external storage and allocate
the data storage at the correct times.
Also, mostly straighten out the strange code which allocates and fills
raw data storage for datasets. Things are still a bit odd in that the
fill-values for chunked datasets are written when the space is allocated,
instead of in a separate routine, but there are two reasons for this:
it's inefficient (especially in parallel) to iterate through all the chunks
twice, and (more importantly) the space needed to store compressed chunks
isn't known until we've got a buffer of compressed fill-values ready to
write to the chunk.
Additionally, add in the H5D_SPACE_ALLOC_INCR and H5D_SPACE_ALLOC_DEFAULT
setting for the "space time", which incorporate the previous behavior of
the space allocation for chunked datasets.
The default settings for the different types of dataset storage are now
as follows:
Contiguous - Late
Chunked - Incremental
Compact - Early
This checkin also incorporates a change to the behavior of external data
storage in two ways - fill-values are _never_ written to external storage
(under the assumption that writing fill-values is triggered by allocating
space in an HDF5 file, and since space is not allocated in the file, the
fill-values should not be written) and external data files are now created
if they don't exist when data is written to them. The fill-value will
probably need to be revisited at some time in the future, this just seemed
like the safer course currently.
I think I cleaned up some compiler errors also, before getting bogged down
in the fixes for the space allocation and fill-values.
Platforms tested:
FreeBSD 4.6 (sleipnir) w/serial & parallel. Will be testing on IRIX64
6.5 (modi4) in serial & parallel shortly.
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Code cleanup
Description:
Combined H5P_isa_class and H5I_object functionality into a new internal
H5P API function: H5P_object_verify, which checks that a property list is
the appropriate class and then returns the property list object associated
with the property list ID.
This reduces the source code by about 200 LOC and trims the library binary
some more.
Platforms tested:
FreeBSD 4.6 (sleipnir)
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