/opt/trunk/apple-only/bin/ompi_info --param oob tcp --level 9
MCA oob: parameter "oob_tcp_verbose" (current value: "0", data
source: default, level: 9 dev/all, type: int)
Verbose level for the OOB tcp component
MCA oob: parameter "oob_tcp_peer_limit" (current value: "-1",
data source: default, level: 9 dev/all, type: int)
Maximum number of peer connections to simultaneously
maintain (-1 = infinite)
MCA oob: parameter "oob_tcp_peer_retries" (current value:
"60", data source: default, level: 9 dev/all, type: int)
Number of times to try shutting down a connection
before giving up
MCA oob: parameter "oob_tcp_debug" (current value: "0", data
source: default, level: 9 dev/all, type: int)
Enable (1) / disable (0) debugging output for this
component
MCA oob: parameter "oob_tcp_sndbuf" (current value: "131072",
data source: default, level: 9 dev/all, type: int)
TCP socket send buffering size (in bytes)
MCA oob: parameter "oob_tcp_rcvbuf" (current value: "131072",
data source: default, level: 9 dev/all, type: int)
TCP socket receive buffering size (in bytes)
MCA oob: parameter "oob_tcp_if_include" (current value: "",
data source: default, level: 9 dev/all, type: string, synonyms: oob_tcp_include)
Comma-delimited list of devices and/or CIDR notation
of networks to use for Open MPI bootstrap communication (e.g.,
"eth0,192.168.0.0/16"). Mutually exclusive with oob_tcp_if_exclude.
MCA oob: parameter "oob_tcp_if_exclude" (current value: "",
data source: default, level: 9 dev/all, type: string, synonyms: oob_tcp_exclude)
Comma-delimited list of devices and/or CIDR notation
of networks to NOT use for Open MPI bootstrap communication -- all devices not
matching these specifications will be used (e.g., "eth0,192.168.0.0/16"). If
set to a non-default value, it is mutually exclusive with oob_tcp_if_include.
MCA oob: parameter "oob_tcp_connect_sleep" (current value:
"1", data source: default, level: 9 dev/all, type: int)
Enable (1) / disable (0) random sleep for connection
wireup.
MCA oob: parameter "oob_tcp_listen_mode" (current value:
"event", data source: default, level: 9 dev/all, type: int)
Mode for HNP to accept incoming connections: event,
listen_thread.
Valid values: 0:"event", 1:"listen_thread"
MCA oob: parameter "oob_tcp_listen_thread_max_queue" (current
value: "10", data source: default, level: 9 dev/all, type: int)
High water mark for queued accepted socket list size.
Used only when listen_mode is listen_thread.
MCA oob: parameter "oob_tcp_listen_thread_wait_time" (current
value: "10", data source: default, level: 9 dev/all, type: int)
Time in milliseconds to wait before actively checking
for new connections when listen_mode is listen_thread.
MCA oob: parameter "oob_tcp_static_ports" (current value: "",
data source: default, level: 9 dev/all, type: string)
Static ports for daemons and procs (IPv4)
MCA oob: parameter "oob_tcp_dynamic_ports" (current value: "",
data source: default, level: 9 dev/all, type: string)
Range of ports to be dynamically used by daemons and
procs (IPv4)
MCA oob: parameter "oob_tcp_disable_family" (current value:
"none", data source: default, level: 9 dev/all, type: int)
Disable IPv4 (4) or IPv6 (6)
Valid values: 0:"none", 4:"IPv4", 6:"IPv6"
/opt/trunk/apple-only/bin/ompi_info --param btl tcp --level 9
MCA btl: parameter "btl_tcp_links" (current value: "1", data
source: default, level: 4 tuner/basic, type: unsigned)
MCA btl: parameter "btl_tcp_if_include" (current value: "",
data source: default, level: 1 user/basic, type: string)
Comma-delimited list of devices and/or CIDR notation
of networks to use for MPI communication (e.g., "eth0,192.168.0.0/16").
Mutually exclusive with btl_tcp_if_exclude.
MCA btl: parameter "btl_tcp_if_exclude" (current value:
"127.0.0.1/8,sppp", data source: default, level: 1 user/basic, type: string)
Comma-delimited list of devices and/or CIDR notation
of networks to NOT use for MPI communication -- all devices not matching these
specifications will be used (e.g., "eth0,192.168.0.0/16"). If set to a
non-default value, it is mutually exclusive with btl_tcp_if_include.
MCA btl: parameter "btl_tcp_free_list_num" (current value:
"8", data source: default, level: 5 tuner/detail, type: int)
MCA btl: parameter "btl_tcp_free_list_max" (current value:
"-1", data source: default, level: 5 tuner/detail, type: int)
MCA btl: parameter "btl_tcp_free_list_inc" (current value:
"32", data source: default, level: 5 tuner/detail, type: int)
MCA btl: parameter "btl_tcp_sndbuf" (current value: "131072",
data source: default, level: 4 tuner/basic, type: int)
MCA btl: parameter "btl_tcp_rcvbuf" (current value: "131072",
data source: default, level: 4 tuner/basic, type: int)
MCA btl: parameter "btl_tcp_endpoint_cache" (current value:
"30720", data source: default, level: 4 tuner/basic, type: int)
The size of the internal cache for each TCP
connection. This cache is used to reduce the number of syscalls, by replacing
them with memcpy. Every read will read the expected data plus the amount of the
endpoint_cache
MCA btl: parameter "btl_tcp_use_nagle" (current value: "0",
data source: default, level: 4 tuner/basic, type: int)
Whether to use Nagle's algorithm or not (using
Nagle's algorithm may increase short message latency)
MCA btl: parameter "btl_tcp_port_min_v4" (current value:
"1024", data source: default, level: 2 user/detail, type: int)
The minimum port where the TCP BTL will try to bind
(default 1024)
MCA btl: parameter "btl_tcp_port_range_v4" (current value:
"64511", data source: default, level: 2 user/detail, type: int)
The number of ports where the TCP BTL will try to
bind (default 64511). This parameter together with the port min, define a range
of ports where Open MPI will open sockets.
MCA btl: parameter "btl_tcp_exclusivity" (current value:
"100", data source: default, level: 7 dev/basic, type: unsigned)
BTL exclusivity (must be >= 0)
MCA btl: parameter "btl_tcp_flags" (current value: "314", data
source: default, level: 5 tuner/detail, type: unsigned)
BTL bit flags (general flags: SEND=1, PUT=2, GET=4,
SEND_INPLACE=8, RDMA_MATCHED=64, HETEROGENEOUS_RDMA=256; flags only used by the
"dr" PML (ignored by others): ACK=16, CHECKSUM=32, RDMA_COMPLETION=128; flags
only used by the "bfo" PML (ignored by others): FAILOVER_SUPPORT=512)
MCA btl: parameter "btl_tcp_rndv_eager_limit" (current value:
"65536", data source: default, level: 4 tuner/basic, type: size_t)
Size (in bytes, including header) of "phase 1"
fragment sent for all large messages (must be >= 0 and <= eager_limit)
MCA btl: parameter "btl_tcp_eager_limit" (current value:
"65536", data source: default, level: 4 tuner/basic, type: size_t)
Maximum size (in bytes, including header) of "short"
messages (must be >= 1).
MCA btl: parameter "btl_tcp_max_send_size" (current value:
"131072", data source: default, level: 4 tuner/basic, type: size_t)
Maximum size (in bytes) of a single "phase 2"
fragment of a long message when using the pipeline protocol (must be >= 1)
MCA btl: parameter "btl_tcp_rdma_pipeline_send_length"
(current value: "131072", data source: default, level: 4 tuner/basic, type:
size_t)
Length of the "phase 2" portion of a large message
(in bytes) when using the pipeline protocol. This part of the message will be
split into fragments of size max_send_size and sent using send/receive
semantics (must be >= 0; only relevant when the PUT flag is set)
MCA btl: parameter "btl_tcp_rdma_pipeline_frag_size" (current
value: "2147483647", data source: default, level: 4 tuner/basic, type: size_t)
Maximum size (in bytes) of a single "phase 3"
fragment from a long message when using the pipeline protocol. These fragments
will be sent using RDMA semantics (must be >= 1; only relevant when the PUT
flag is set)
MCA btl: parameter "btl_tcp_min_rdma_pipeline_size" (current
value: "196608", data source: default, level: 4 tuner/basic, type: size_t)
Messages smaller than this size (in bytes) will not
use the RDMA pipeline protocol. Instead, they will be split into fragments of
max_send_size and sent using send/receive semantics (must be >=0, and is
automatically adjusted up to at least
(eager_limit+btl_rdma_pipeline_send_length); only relevant when the PUT flag is
set)
MCA btl: parameter "btl_tcp_bandwidth" (current value: "100",
data source: default, level: 5 tuner/detail, type: unsigned)
Approximate maximum bandwidth of interconnect (0 =
auto-detect value at run-time [not supported in all BTL modules], >= 1 =
bandwidth in Mbps)
MCA btl: parameter "btl_tcp_disable_family" (current value:
"0", data source: default, level: 2 user/detail, type: int)
MCA btl: parameter "btl_tcp_if_seq" (current value: "", data
source: default, level: 9 dev/all, type: string)
If specified, a comma-delimited list of TCP
interfaces. Interfaces will be assigned, one to each MPI process, in a
round-robin fashion on each server. For example, if the list is "eth0,eth1"
and four MPI processes are run on a single server, then local ranks 0 and 2
will use eth0 and local ranks 1 and 3 will use eth1.
On Nov 27, 2013, at 2:41 PM, George Bosilca
<bosi...@icl.utk.edu<mailto:bosi...@icl.utk.edu>> wrote:
ompi_info —param oob tcp —level 9
ompi_info —param btl tcp —level 9
