From ffff13f0f3fef61d98012983ea71659339fa502c Mon Sep 17 00:00:00 2001 From: "M. Scot Breitenfeld" Date: Wed, 2 Jan 2019 11:11:24 -0600 Subject: Documented HDFFV-10652 --- release_docs/RELEASE.txt | 8 +++++++- 1 file changed, 7 insertions(+), 1 deletion(-) diff --git a/release_docs/RELEASE.txt b/release_docs/RELEASE.txt index e386c8b..a92881e 100644 --- a/release_docs/RELEASE.txt +++ b/release_docs/RELEASE.txt @@ -132,7 +132,13 @@ New Features Parallel Library: ----------------- - - + - Changed the default behavior in parallel when reading the same dataset in its entirely + (i.e. H5S_ALL dataset selection) which is being read by all the processes collectively. + The new behavior is the HDF5 library will use an MPI_Bcast to pass the data read from + the disk by the root process to the remain processes in the MPI communicator associated + with the HDF5 file. + + (MSB - 2019/01/02, HDFFV-10652) Fortran Library: ---------------- -- cgit v0.12 From 422d6daf6bdee030d0ffac5fa6d7bbe37b1d5501 Mon Sep 17 00:00:00 2001 From: "M. Scot Breitenfeld" Date: Wed, 2 Jan 2019 11:53:41 -0600 Subject: typo --- src/H5Dmpio.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/src/H5Dmpio.c b/src/H5Dmpio.c index f6b1692..8850c59 100644 --- a/src/H5Dmpio.c +++ b/src/H5Dmpio.c @@ -83,7 +83,7 @@ /* Macros to represent the regularity of the selection for multiple chunk IO case. */ #define H5D_CHUNK_SELECT_REG 1 -/* Macros for reason's to not enable read-proc-and-bcast. */ +/* Macros for reasons to not enable read-proc-and-bcast. */ #define H5D_MPIO_PROC0_BCAST 0x00 #define H5D_MPIO_NOT_H5S_ALL 0x01 #define H5D_MPIO_GREATER_THAN_2GB 0x02 -- cgit v0.12