This commit adds a new btl for one-sided and two-sided. This btl
uses the uct layer in OpenUCX. This btl makes use of multiple uct
contexts and per-thread device pinning to provide good performance
when using threads and osc/rdma. This btl has been tested extensively
with osc/rdma and passes all MTT tests on aries and IB hardware.
For now this new component disables itself but can be enabled by
setting the btl_ucx_transports MCA variable with a comma-delimited
list of supported memory domains/transport layers. For example:
--mca btl_uct_memory_domains ib/mlx5_0. The specific transports used
can be selected using --mca btl_uct_transports. The default is to use
any available transport.
Signed-off-by: Nathan Hjelm <hjelmn@lanl.gov>
The osc/rdma module did not wait for all pending atomics to complete
before tearing down. This could lead to weird issues as the target
location may no longer be registered or allocated.
This commit also fixes an offset calculation issue in
ompi_osc_get_data_blocking ().
Signed-off-by: Nathan Hjelm <hjelmn@lanl.gov>
The giant size of the TCP proc struct is causing a problem in some
environments (because it is allocated on the stack), and it was too
big, anyway.
Instead, use a hash map. That way, it starts small and can grow if it
needs to. It also makes no assumptions about the values of the kernel
interface indexes.
Fixes#5292.
Signed-off-by: Jeff Squyres <jsquyres@cisco.com>
a bug sneaked into constructing the list of aggregators
processes when using the fileview based grouping options
Signed-off-by: Edgar Gabriel <egabriel@central.uh.edu>
handle the situation where the user requests a non-zero amount
of data but has a zero-size fileview. My instrinct would have been
to return an error code, but according to the test that I used
it should be MPI_SUCCESS and zero bytes. It is definitely better
than segfaulting :-)
THis makes another test from the IBM testsuite pass.
Signed-off-by: Edgar Gabriel <egabriel@central.uh.edu>
the seek offset calculation did not treat the offset as a multiple
of the etype provided. Fixing this makes some more ibm tests pass.
Signed-off-by: Edgar Gabriel <egabriel@central.uh.edu>
Since the new binding option is tied to the --cpu-list orterun CLI
option, make the --bind-to option reflect the same name (vs. the
--cpu-set CLI option, which is entirely different). For example:
mpirun --bind-to cpu-list:ordered ...
Note that "--bind-to cpulist:ordered" is accepted as a synonym,
because people will be lazy.
Also add some minor updates to the orterun.1in man page for
clarification.
Signed-off-by: Jeff Squyres <jsquyres@cisco.com>
use an allocator to manage temporary buffers when copying
unmanaged data from GPU buffer to host. This is necessary,
since the buffers have to be pinned for better performance,
which is an expensive operation.
Signed-off-by: Edgar Gabriel <egabriel@central.uh.edu>
the two_phase compoment does not work with some collective I/O
operations on CUDA buffers due to the data sieving (i.e.
both read and write operations) executed on some buffers, which are
not anticipated in the GPU buffer management of the code.
Signed-off-by: Edgar Gabriel <egabriel@central.uh.edu>
this commit adds the initial support for cuda buffers in ompio, for blocking
and non-blocking individual read and write operations.
Signed-off-by: Edgar Gabriel <egabriel@central.uh.edu>
cuda buffer
the existing interface in opal_datatype_cuda do not allow to distinguish whether a
buffer is a managed or unmanaged cuda buffer. Add an interface that allows to
retrieve this information throug a convertor, since the information is actually available
in the mca_common_cuda_* routines.
Signed-off-by: Edgar Gabriel <egabriel@central.uh.edu>
Allow users to request that procs be bound to a cpu in a given cpu-list based on their corresponding local rank
Signed-off-by: Ralph Castain <rhc@open-mpi.org>
Cover all data types for OPAL-to-PMIx conversion, generating error logs when we hit something we don't support
Signed-off-by: Ralph Castain <rhc@open-mpi.org>
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>
