introduce separate convertors for memory vs. file representation. Adjust the interfaces for decode_datatype to provide the convertor to be used for that.
Signed-off-by: Edgar Gabriel <egabriel@central.uh.edu>
two minor updates:
- in all components: use the fh->f_bytes_per_agg value
(which might have been set by an info object) instead
of re-reading the mca parameter
- vulcan and dynamic_gen2: replace one allgather operation
by an allreduce, since it is used to determine the sum
of an array.
Signed-off-by: Edgar Gabriel <egabriel@central.uh.edu>
and some internal structure elements/components. Along the way,
add support for the cb_nodes Info object.
Signed-off-by: Edgar Gabriel <egabriel@central.uh.edu>
since the request code is now being accessed also from the vulcan fcoll
component, the request code was relocated into the common/ompio
directory to avoid ld load problems.
Signed-off-by: Edgar Gabriel <egabriel@central.uh.edu>
We introduced a new mca_vulcan parameter that specify the I/O synchronization
type (Async/sync I/O) applied within the collective write operation.
The user can explicitly choose to use async or sync write operation or make
the choice automatically made.
Signed-off-by: raafatfeki <fekiraafat@gmail.com>
For very large offsets, the data chunk size to be written by each aggregator
exceeds the capacity of an integer variable. Besides, some variables were
not large enough to hold intermediate values.
Signed-off-by: raafatfeki <fekiraafat@gmail.com>
Identify the index of each aggregator process in order to restrict the call to write_init function by the specific aggregator.
Signed-off-by: raafatfeki <fekiraafat@gmail.com>
Instead of using a temporary buffer and copy data into the temp buffer before sending, use a derived datatype to describe the data that needs to be sent during a cycle in the collective I/O operation.
Signed-off-by: raafatfeki <fekiraafat@gmail.com>
import of the new vulcan component. It is an enhanced version
of the two_phase component, which uses however the ompio internal
codes/loops to assemble the data arrays. It is therefore more inline
with the dynamic and dynamic_gen2 component, and will be easier to
maintain.
Signed-off-by: Edgar Gabriel <egabriel@central.uh.edu>
