Commit message (Collapse) | Author | Age | Files | Lines | |
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* | [svn-r12766] Made two changes to Direct I/O VFD: first added 3 parameters to ↵ | Raymond Lu | 2006-10-16 | 1 | -1/+2 |
| | | | | | | | | H5Pset_fapl_direct to control memory boundary, file block size, and maximal copy buffer size; second in H5FD_direct_write and H5FD_direct_read, the library checks whether data buffer is aligned. If it is, then write and read the data directly instead of making a copy buffer. | ||||
* | [svn-r12739] Added Direct I/O driver to VFD. It's only supported by SGI ↵ | Raymond Lu | 2006-10-10 | 1 | -0/+47 |
Altix (cobalt). There's a configure option --enable-direct-vfd/--disable-direct-vfd to enable/disable Direct I/O support. The default is enabled. There's a small test in test/vfd.c. Another way to test it is to set environment variable HDF5_DRIVER to "direct" and run "make check" in the test/ directory. There'll be some further improvement in the following checkin including allowing user to provide memory boundary value, file block size, and copying buffer size. |