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47 extern int gmx_parallel_env
; /* 1 when running in a parallel environment,
48 * so could also be 1 when mdrun was started
52 extern FILE *gmx_log_open(char *fn
,const t_commrec
*cr
,bool bMasterOnly
, unsigned long Flags
);
53 /* Open the log file, if necessary (nprocs > 1) the logfile name is
54 * communicated around the ring.
57 extern void gmx_log_close(FILE *fp
);
58 /* Close the log file */
60 extern void check_multi_int(FILE *log
,const gmx_multisim_t
*ms
,
61 int val
,const char *name
);
62 /* Check if val is the same on all processors for a mdrun -multi run
63 * The string name is used to print to the log file and in a fatal error
64 * if the val's don't match.
67 extern void init_multisystem(t_commrec
*cr
,int nsim
,int nfile
,t_filenm fnm
[],
69 /* Splits the communication into nsim seperate simulations
70 * and creates a communication structure between the master
72 * If bParFn is set, the nodeid is appended to the tpx and each output file.
75 extern t_commrec
*init_par(int *argc
,char ***argv_ptr
);
76 /* Initiate the parallel computer. Return the communication record
77 * (see network.h). The command line arguments are communicated so that they can be
78 * parsed on each processor.
79 * Arguments are the number of command line arguments, and a pointer to the
80 * array of argument strings.
84 extern t_commrec
*init_cr_nopar(void);
85 /* Returns t_commrec for non-parallel functionality */