a3e02fdaff
alignment, which typically causes problems on SPARC. Further, the pointer manipulation to access elements in a round schedule was clumsy. This change introduces macros to facilitate addressing and make it more portable. This commit was SVN r26802.
567 строки
17 KiB
C
567 строки
17 KiB
C
/*
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* Copyright (c) 2006 The Trustees of Indiana University and Indiana
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* University Research and Technology
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* Corporation. All rights reserved.
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* Copyright (c) 2006 The Technical University of Chemnitz. All
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* rights reserved.
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*
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* Author(s): Torsten Hoefler <htor@cs.indiana.edu>
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*
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* Copyright (c) 2012 Oracle and/or its affiliates. All rights reserved.
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*
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*/
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#ifndef __NBC_INTERNAL_H__
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#define __NBC_INTERNAL_H__
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#include "ompi_config.h"
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/* correct fortran bindings */
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#define NBC_F77_FUNC_ F77_FUNC_
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#include "mpi.h"
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#include "coll_libnbc.h"
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#include "ompi/include/ompi/constants.h"
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#include "ompi/request/request.h"
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#include <stdlib.h>
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#include <stdio.h>
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#include <stdarg.h>
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#include <assert.h>
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#include <math.h>
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#include <string.h>
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#include "libdict/dict.h"
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#ifdef __cplusplus
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extern "C" {
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#endif
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/* log(2) */
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#define LOG2 0.69314718055994530941
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/* true/false */
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#define true 1
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#define false 0
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/* all collectives */
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#define NBC_ALLGATHER 0
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#define NBC_ALLGATHERV 1
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#define NBC_ALLREDUCE 2
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#define NBC_ALLTOALL 3
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#define NBC_ALLTOALLV 4
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#define NBC_ALLTOALLW 5
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#define NBC_BARRIER 6
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#define NBC_BCAST 7
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#define NBC_EXSCAN 8
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#define NBC_GATHER 9
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#define NBC_GATHERV 10
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#define NBC_REDUCE 11
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#define NBC_REDUCESCAT 12
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#define NBC_SCAN 13
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#define NBC_SCATTER 14
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#define NBC_SCATTERV 15
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/* set the number of collectives in nbc.h !!!! */
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/* several typedefs for NBC */
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/* the function type enum */
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typedef enum {
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SEND,
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RECV,
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OP,
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COPY,
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UNPACK
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} NBC_Fn_type;
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/* the send argument struct */
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typedef struct {
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void *buf;
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char tmpbuf;
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int count;
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MPI_Datatype datatype;
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int dest;
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} NBC_Args_send;
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/* the receive argument struct */
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typedef struct {
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void *buf;
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char tmpbuf;
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int count;
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MPI_Datatype datatype;
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int source;
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} NBC_Args_recv;
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/* the operation argument struct */
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typedef struct {
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void *buf1;
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char tmpbuf1;
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void *buf2;
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char tmpbuf2;
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void *buf3;
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char tmpbuf3;
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int count;
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MPI_Op op;
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MPI_Datatype datatype;
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} NBC_Args_op;
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/* the copy argument struct */
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typedef struct {
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void *src;
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char tmpsrc;
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int srccount;
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MPI_Datatype srctype;
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void *tgt;
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char tmptgt;
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int tgtcount;
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MPI_Datatype tgttype;
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} NBC_Args_copy;
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/* unpack operation arguments */
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typedef struct {
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void *inbuf;
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char tmpinbuf;
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int count;
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MPI_Datatype datatype;
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void *outbuf;
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char tmpoutbuf;
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} NBC_Args_unpack;
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/* internal function prototypes */
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int NBC_Sched_create(NBC_Schedule* schedule);
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int NBC_Sched_send(void* buf, char tmpbuf, int count, MPI_Datatype datatype, int dest, NBC_Schedule *schedule);
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int NBC_Sched_recv(void* buf, char tmpbuf, int count, MPI_Datatype datatype, int source, NBC_Schedule *schedule);
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int NBC_Sched_op(void* buf3, char tmpbuf3, void* buf1, char tmpbuf1, void* buf2, char tmpbuf2, int count, MPI_Datatype datatype, MPI_Op op, NBC_Schedule *schedule);
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int NBC_Sched_copy(void *src, char tmpsrc, int srccount, MPI_Datatype srctype, void *tgt, char tmptgt, int tgtcount, MPI_Datatype tgttype, NBC_Schedule *schedule);
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int NBC_Sched_unpack(void *inbuf, char tmpinbuf, int count, MPI_Datatype datatype, void *outbuf, char tmpoutbuf, NBC_Schedule *schedule);
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int NBC_Sched_barrier(NBC_Schedule *schedule);
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int NBC_Sched_commit(NBC_Schedule *schedule);
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#ifdef NBC_CACHE_SCHEDULE
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/* this is a dummy structure which is used to get the schedule out of
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* the collop specific structure. The schedule pointer HAS to be at the
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* first position and should NOT BE REORDERED by the compiler (C
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* guarantees that */
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struct NBC_dummyarg {
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NBC_Schedule *schedule;
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};
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typedef struct {
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NBC_Schedule *schedule;
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void *sendbuf;
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int sendcount;
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MPI_Datatype sendtype;
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void* recvbuf;
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int recvcount;
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MPI_Datatype recvtype;
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} NBC_Alltoall_args;
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int NBC_Alltoall_args_compare(NBC_Alltoall_args *a, NBC_Alltoall_args *b, void *param);
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typedef struct {
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NBC_Schedule *schedule;
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void *sendbuf;
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int sendcount;
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MPI_Datatype sendtype;
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void* recvbuf;
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int recvcount;
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MPI_Datatype recvtype;
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} NBC_Allgather_args;
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int NBC_Allgather_args_compare(NBC_Allgather_args *a, NBC_Allgather_args *b, void *param);
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typedef struct {
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NBC_Schedule *schedule;
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void *sendbuf;
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void* recvbuf;
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int count;
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MPI_Datatype datatype;
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MPI_Op op;
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} NBC_Allreduce_args;
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int NBC_Allreduce_args_compare(NBC_Allreduce_args *a, NBC_Allreduce_args *b, void *param);
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typedef struct {
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NBC_Schedule *schedule;
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void *buffer;
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int count;
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MPI_Datatype datatype;
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int root;
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} NBC_Bcast_args;
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int NBC_Bcast_args_compare(NBC_Bcast_args *a, NBC_Bcast_args *b, void *param);
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typedef struct {
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NBC_Schedule *schedule;
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void *sendbuf;
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int sendcount;
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MPI_Datatype sendtype;
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void* recvbuf;
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int recvcount;
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MPI_Datatype recvtype;
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int root;
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} NBC_Gather_args;
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int NBC_Gather_args_compare(NBC_Gather_args *a, NBC_Gather_args *b, void *param);
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typedef struct {
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NBC_Schedule *schedule;
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void *sendbuf;
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void* recvbuf;
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int count;
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MPI_Datatype datatype;
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MPI_Op op;
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int root;
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} NBC_Reduce_args;
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int NBC_Reduce_args_compare(NBC_Reduce_args *a, NBC_Reduce_args *b, void *param);
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typedef struct {
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NBC_Schedule *schedule;
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void *sendbuf;
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void* recvbuf;
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int count;
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MPI_Datatype datatype;
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MPI_Op op;
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} NBC_Scan_args;
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int NBC_Scan_args_compare(NBC_Scan_args *a, NBC_Scan_args *b, void *param);
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typedef struct {
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NBC_Schedule *schedule;
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void *sendbuf;
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int sendcount;
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MPI_Datatype sendtype;
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void* recvbuf;
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int recvcount;
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MPI_Datatype recvtype;
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int root;
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} NBC_Scatter_args;
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int NBC_Scatter_args_compare(NBC_Scatter_args *a, NBC_Scatter_args *b, void *param);
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/* Schedule cache structures/functions */
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void NBC_SchedCache_args_delete(void *entry);
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void NBC_SchedCache_args_delete_key_dummy(void *k);
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#endif
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int NBC_Start(NBC_Handle *handle, NBC_Schedule *schedule);
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int NBC_Init_handle(struct ompi_communicator_t *comm, ompi_coll_libnbc_request_t **request, ompi_coll_libnbc_module_t *module);
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static inline int NBC_Type_intrinsic(MPI_Datatype type);
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static inline int NBC_Copy(void *src, int srccount, MPI_Datatype srctype, void *tgt, int tgtcount, MPI_Datatype tgttype, MPI_Comm comm);
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int NBC_Create_fortran_handle(int *fhandle, NBC_Handle **handle);
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/* some macros */
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/* a schedule has the following format:
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* [schedule] ::= [size][round-schedule][delimiter][round-schedule][delimiter]...[end]
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* [size] ::= size of the schedule (int)
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* [round-schedule] ::= [num][type][type-args][type][type-args]...
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* [num] ::= number of elements in round (int)
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* [type] ::= function type (NBC_Fn_type)
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* [type-args] ::= type specific arguments (NBC_Args_send, NBC_Args_recv or, NBC_Args_op)
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* [delimiter] ::= 1 (char) - indicates that a round follows
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* [end] ::= 0 (char) - indicates that this is the last round
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*/
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/*
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* The addresses of components of a round-schedule may be poorly aligned.
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* E.g., single-char delimiters can push addresses to odd-byte boundaries.
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* Or even ints can push 8-byte pointers to 4-byte boundaries.
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* So, for greater portability, we access components of a round-schedule with memcpy.
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*/
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#define NBC_GET_BYTES(ptr,x) {memcpy(&x,ptr,sizeof(x)); ptr += sizeof(x);}
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#define NBC_PUT_BYTES(ptr,x) {memcpy(ptr,&x,sizeof(x)); ptr += sizeof(x);}
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/* NBC_GET_ROUND_SIZE returns the size in bytes of a round of a NBC_Schedule
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* schedule. A round has the format:
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* [num]{[type][type-args]}
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* e.g. [(int)2][(NBC_Fn_type)SEND][(NBC_Args_send)SEND-ARGS][(NBC_Fn_type)RECV][(NBC_Args_recv)RECV-ARGS] */
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#define NBC_GET_ROUND_SIZE(schedule, size) \
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{ \
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int num; \
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char *p = (char*) schedule; \
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NBC_Fn_type type; \
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int i; \
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\
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NBC_GET_BYTES(p,num); \
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/*NBC_DEBUG(10, "GET_ROUND_SIZE got %i elements\n", num); */\
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for (i=0; i<num; i++) { \
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NBC_GET_BYTES(p,type); \
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switch(type) { \
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case SEND: \
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/*printf("found a SEND at offset %li\n", (long)p-(long)schedule); */\
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p += sizeof(NBC_Args_send); \
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break; \
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case RECV: \
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/*printf("found a RECV at offset %li\n", (long)p-(long)schedule); */\
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p += sizeof(NBC_Args_recv); \
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break; \
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case OP: \
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/*printf("found a OP at offset %li\n", (long)p-(long)schedule); */\
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p += sizeof(NBC_Args_op); \
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break; \
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case COPY: \
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/*printf("found a COPY at offset %li\n", (long)p-(long)schedule); */\
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p += sizeof(NBC_Args_copy); \
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break; \
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case UNPACK: \
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/*printf("found a UNPACK at offset %li\n", (long)p-(long)schedule); */\
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p += sizeof(NBC_Args_unpack); \
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break; \
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default: \
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printf("NBC_GET_ROUND_SIZE: bad type %i at offset %li\n", type, (long)p-sizeof(type)-(long)schedule); \
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return NBC_BAD_SCHED; \
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} \
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} \
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size = (long)p-(long)schedule; \
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}
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/* returns the size of a schedule in bytes */
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#define NBC_GET_SIZE(schedule, size) \
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{ \
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size=*(int*)schedule; \
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}
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/* increase the size of a schedule by size bytes */
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#define NBC_INC_SIZE(schedule, size) \
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{ \
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*(int*)schedule+=size; \
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}
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/* increments the number of operations in the last round */
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#define NBC_INC_NUM_ROUND(schedule) \
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{ \
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int total_size, num_last_round; \
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long round_size; \
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char *ptr, *lastround; \
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\
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NBC_GET_SIZE(schedule, total_size); \
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\
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/* ptr begins at first round (first int is overall size) */ \
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ptr = (char*)schedule+sizeof(int); \
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lastround = ptr; \
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while ((long)ptr-(long)schedule < total_size) { \
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NBC_GET_ROUND_SIZE(ptr, round_size); \
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/*printf("got round_size %i\n", round_size);*/ \
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lastround = ptr; \
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ptr += round_size; \
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ptr += sizeof(char); /* barrier delimiter */ \
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/*printf("(long)ptr-(long)schedule=%li, total_size=%i\n", (long)ptr-(long)schedule, total_size); */\
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} \
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/*printf("lastround count is at offset: %li\n", (long)lastround-(long)schedule);*/ \
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/* increment the count in the last round of the schedule */ \
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memcpy(&num_last_round, lastround, sizeof(int)); \
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num_last_round++; \
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memcpy(lastround, &num_last_round, sizeof(int)); \
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}
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/* NBC_PRINT_ROUND prints a round in a schedule. A round has the format:
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* [num]{[type][type-args]} types: [int]{[enum][args-type]}
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* e.g. [2][SEND][SEND-ARGS][RECV][RECV-ARGS] */
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#define NBC_PRINT_ROUND(schedule) \
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{ \
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int myrank, i, num; \
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char *p = (char*) schedule; \
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NBC_Fn_type type; \
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NBC_Args_send sendargs; \
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NBC_Args_recv recvargs; \
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NBC_Args_op opargs; \
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NBC_Args_copy copyargs; \
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NBC_Args_unpack unpackargs; \
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\
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NBC_GET_BYTES(p,num); \
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MPI_Comm_rank(MPI_COMM_WORLD, &myrank); \
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printf("[%i] has %i actions: \n", myrank, num); \
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for (i=0; i<num; i++) { \
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NBC_GET_BYTES(p,type); \
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switch(type) { \
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case SEND: \
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printf("[%i] SEND (offset %li) ", myrank, (long)p-(long)schedule); \
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NBC_GET_BYTES(p,sendargs); \
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printf("*buf: %lu, count: %i, type: %lu, dest: %i)\n", (unsigned long)sendargs.buf, sendargs.count, (unsigned long)sendargs.datatype, sendargs.dest); \
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break; \
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case RECV: \
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printf("[%i] RECV (offset %li) ", myrank, (long)p-(long)schedule); \
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NBC_GET_BYTES(p,recvargs); \
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printf("*buf: %lu, count: %i, type: %lu, source: %i)\n", (unsigned long)recvargs.buf, recvargs.count, (unsigned long)recvargs.datatype, recvargs.source); \
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break; \
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case OP: \
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printf("[%i] OP (offset %li) ", myrank, (long)p-(long)schedule); \
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NBC_GET_BYTES(p,opargs); \
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printf("*buf1: %lu, buf2: %lu, count: %i, type: %lu)\n", (unsigned long)opargs.buf1, (unsigned long)opargs.buf2, opargs.count, (unsigned long)opargs.datatype); \
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break; \
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case COPY: \
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printf("[%i] COPY (offset %li) ", myrank, (long)p-(long)schedule); \
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NBC_GET_BYTES(p,copyargs); \
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printf("*src: %lu, srccount: %i, srctype: %lu, *tgt: %lu, tgtcount: %i, tgttype: %lu)\n", (unsigned long)copyargs.src, copyargs.srccount, (unsigned long)copyargs.srctype, (unsigned long)copyargs.tgt, copyargs.tgtcount, (unsigned long)copyargs.tgttype); \
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break; \
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case UNPACK: \
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printf("[%i] UNPACK (offset %li) ", myrank, (long)p-(long)schedule); \
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NBC_GET_BYTES(p,unpackargs); \
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printf("*src: %lu, srccount: %i, srctype: %lu, *tgt: %lu\n",(unsigned long)unpackargs.inbuf, unpackargs.count, (unsigned long)unpackargs.datatype, (unsigned long)unpackargs.outbuf); \
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break; \
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default: \
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printf("[%i] NBC_PRINT_ROUND: bad type %i at offset %li\n", myrank, type, (long)p-sizeof(type)-(long)schedule); \
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return NBC_BAD_SCHED; \
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} \
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} \
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printf("\n"); \
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}
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#define NBC_PRINT_SCHED(schedule) \
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{ \
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int size, myrank; \
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long round_size; \
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char *ptr; \
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\
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NBC_GET_SIZE(schedule, size); \
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MPI_Comm_rank(MPI_COMM_WORLD, &myrank); \
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printf("[%i] printing schedule of size %i\n", myrank, size); \
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\
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/* ptr begins at first round (first int is overall size) */ \
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ptr = (char*)schedule+sizeof(int); \
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while ((long)ptr-(long)schedule < size) { \
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NBC_GET_ROUND_SIZE(ptr, round_size); \
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printf("[%i] Round at byte %li (size %li) ", myrank, (long)ptr-(long)schedule, round_size); \
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NBC_PRINT_ROUND(ptr); \
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ptr += round_size; \
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ptr += sizeof(char); /* barrier delimiter */ \
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} \
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}
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#define NBC_CHECK_NULL(ptr) \
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{ \
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if(ptr == NULL) { \
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printf("realloc error :-(\n"); \
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} \
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}
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/*
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#define NBC_DEBUG(level, ...) {}
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*/
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static inline void NBC_DEBUG(int level, const char *fmt, ...)
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{
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#if NBC_DLEVEL > 0
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va_list ap;
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int rank;
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if(NBC_DLEVEL >= level) {
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MPI_Comm_rank(MPI_COMM_WORLD, &rank);
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printf("[LibNBC - %i] ", rank);
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va_start(ap, fmt);
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vprintf(fmt, ap);
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va_end (ap);
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}
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#endif
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}
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/* returns true (1) or false (0) if type is intrinsic or not */
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static inline int NBC_Type_intrinsic(MPI_Datatype type) {
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if( ( type == MPI_INT ) ||
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( type == MPI_LONG ) ||
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( type == MPI_SHORT ) ||
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( type == MPI_UNSIGNED ) ||
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( type == MPI_UNSIGNED_SHORT ) ||
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( type == MPI_UNSIGNED_LONG ) ||
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( type == MPI_FLOAT ) ||
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( type == MPI_DOUBLE ) ||
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( type == MPI_LONG_DOUBLE ) ||
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( type == MPI_BYTE ) ||
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( type == MPI_FLOAT_INT) ||
|
|
( type == MPI_DOUBLE_INT) ||
|
|
( type == MPI_LONG_INT) ||
|
|
( type == MPI_2INT) ||
|
|
( type == MPI_SHORT_INT) ||
|
|
( type == MPI_LONG_DOUBLE_INT))
|
|
return 1;
|
|
else
|
|
return 0;
|
|
}
|
|
|
|
/* let's give a try to inline functions */
|
|
static inline int NBC_Copy(void *src, int srccount, MPI_Datatype srctype, void *tgt, int tgtcount, MPI_Datatype tgttype, MPI_Comm comm) {
|
|
int size, pos, res;
|
|
MPI_Aint ext;
|
|
void *packbuf;
|
|
|
|
if((srctype == tgttype) && NBC_Type_intrinsic(srctype)) {
|
|
/* if we have the same types and they are contiguous (intrinsic
|
|
* types are contiguous), we can just use a single memcpy */
|
|
res = MPI_Type_extent(srctype, &ext);
|
|
if (MPI_SUCCESS != res) { printf("MPI Error in MPI_Type_extent() (%i)\n", res); return res; }
|
|
memcpy(tgt, src, srccount*ext);
|
|
} else {
|
|
/* we have to pack and unpack */
|
|
res = MPI_Pack_size(srccount, srctype, comm, &size);
|
|
if (MPI_SUCCESS != res) { printf("MPI Error in MPI_Pack_size() (%i)\n", res); return res; }
|
|
packbuf = malloc(size);
|
|
if (NULL == packbuf) { printf("Error in malloc()\n"); return res; }
|
|
pos=0;
|
|
res = MPI_Pack(src, srccount, srctype, packbuf, size, &pos, comm);
|
|
if (MPI_SUCCESS != res) { printf("MPI Error in MPI_Pack() (%i)\n", res); return res; }
|
|
pos=0;
|
|
res = MPI_Unpack(packbuf, size, &pos, tgt, tgtcount, tgttype, comm);
|
|
if (MPI_SUCCESS != res) { printf("MPI Error in MPI_Unpack() (%i)\n", res); return res; }
|
|
free(packbuf);
|
|
}
|
|
|
|
return NBC_OK;
|
|
}
|
|
|
|
static inline int NBC_Unpack(void *src, int srccount, MPI_Datatype srctype, void *tgt, MPI_Comm comm) {
|
|
int size, pos, res;
|
|
MPI_Aint ext;
|
|
|
|
if(NBC_Type_intrinsic(srctype)) {
|
|
/* if we have the same types and they are contiguous (intrinsic
|
|
* types are contiguous), we can just use a single memcpy */
|
|
res = MPI_Type_extent(srctype, &ext);
|
|
if (MPI_SUCCESS != res) { printf("MPI Error in MPI_Type_extent() (%i)\n", res); return res; }
|
|
memcpy(tgt, src, srccount*ext);
|
|
|
|
} else {
|
|
/* we have to unpack */
|
|
res = MPI_Pack_size(srccount, srctype, comm, &size);
|
|
if (MPI_SUCCESS != res) { printf("MPI Error in MPI_Pack_size() (%i)\n", res); return res; }
|
|
pos=0;
|
|
res = MPI_Unpack(src, size, &pos, tgt, srccount, srctype, comm);
|
|
if (MPI_SUCCESS != res) { printf("MPI Error in MPI_Unpack() (%i)\n", res); return res; }
|
|
}
|
|
|
|
return NBC_OK;
|
|
}
|
|
|
|
/* deletes elements from dict until low watermark is reached */
|
|
static inline void NBC_SchedCache_dictwipe(hb_tree *dict, int *size) {
|
|
hb_itor *itor;
|
|
|
|
itor = hb_itor_new(dict);
|
|
for (; hb_itor_valid(itor) && (*size>NBC_SCHED_DICT_LOWER); hb_itor_next(itor)) {
|
|
hb_tree_remove(dict, hb_itor_key(itor), 0);
|
|
*size = *size-1;
|
|
}
|
|
hb_itor_destroy(itor);
|
|
}
|
|
|
|
#define NBC_IN_PLACE(sendbuf, recvbuf, inplace) \
|
|
{ \
|
|
inplace = 0; \
|
|
if(recvbuf == sendbuf) { \
|
|
inplace = 1; \
|
|
} else \
|
|
if(sendbuf == MPI_IN_PLACE) { \
|
|
sendbuf = recvbuf; \
|
|
inplace = 1; \
|
|
} else \
|
|
if(recvbuf == MPI_IN_PLACE) { \
|
|
recvbuf = sendbuf; \
|
|
inplace = 1; \
|
|
} \
|
|
}
|
|
|
|
#ifdef __cplusplus
|
|
}
|
|
#endif
|
|
|
|
#endif
|
|
|
|
|