552c9ca5a0
WHAT: Open our low-level communication infrastructure by moving all necessary components (btl/rcache/allocator/mpool) down in OPAL All the components required for inter-process communications are currently deeply integrated in the OMPI layer. Several groups/institutions have express interest in having a more generic communication infrastructure, without all the OMPI layer dependencies. This communication layer should be made available at a different software level, available to all layers in the Open MPI software stack. As an example, our ORTE layer could replace the current OOB and instead use the BTL directly, gaining access to more reactive network interfaces than TCP. Similarly, external software libraries could take advantage of our highly optimized AM (active message) communication layer for their own purpose. UTK with support from Sandia, developped a version of Open MPI where the entire communication infrastucture has been moved down to OPAL (btl/rcache/allocator/mpool). Most of the moved components have been updated to match the new schema, with few exceptions (mainly BTLs where I have no way of compiling/testing them). Thus, the completion of this RFC is tied to being able to completing this move for all BTLs. For this we need help from the rest of the Open MPI community, especially those supporting some of the BTLs. A non-exhaustive list of BTLs that qualify here is: mx, portals4, scif, udapl, ugni, usnic. This commit was SVN r32317.
71 строка
1.5 KiB
C
71 строка
1.5 KiB
C
/*
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* Copyright (c) 2006-2013 Cisco Systems, Inc. All rights reserved.
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* Copyright (c) 2008 Mellanox Technologies. All rights reserved.
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* $COPYRIGHT$
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*
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* Additional copyrights may follow
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*
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* $HEADER$
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*
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* @file
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*/
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#ifndef MCA_PTL_IB_PARAMS_H
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#define MCA_PTL_IB_PARAMS_H
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#include "btl_openib.h"
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/*
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* Struct to hold the settable values that may be specified in the INI
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* file
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*/
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typedef struct opal_btl_openib_ini_values_t {
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uint32_t mtu;
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bool mtu_set;
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uint32_t use_eager_rdma;
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bool use_eager_rdma_set;
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char *receive_queues;
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int32_t max_inline_data;
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bool max_inline_data_set;
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bool rdmacm_reject_causes_connect_error;
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bool rdmacm_reject_causes_connect_error_set;
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bool ignore_device;
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bool ignore_device_set;
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} opal_btl_openib_ini_values_t;
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BEGIN_C_DECLS
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/**
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* Read in the INI files containing device params
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*/
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int opal_btl_openib_ini_init(void);
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/**
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* Query the read-in params for a given device
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*/
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int opal_btl_openib_ini_query(uint32_t vendor_id,
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uint32_t vendor_part_id,
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opal_btl_openib_ini_values_t *values);
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/**
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* Shut down / release all internal state
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*/
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int opal_btl_openib_ini_finalize(void);
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/**
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* string to int convertors with dec/hex autodetection
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*/
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int opal_btl_openib_ini_intify(char *string);
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int opal_btl_openib_ini_intify_list(char *str, uint32_t **values, int *len);
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END_C_DECLS
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#endif
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