9 More Discussions You Might Find Interesting
1. UNIX for Dummies Questions & Answers
I am using the following nested loop
for i in {1..3}
do
for y in {1..3}
do
if ;
then
echo P0${i}R${y}.fas
mv P0${i}R${y}.fas P${i}R${y}.fas
read -t 5
fi
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I was wondering if I can use a character such as * or ? instead of my second variable y. I tried R in... (3 Replies)
Discussion started by: Xterra
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Hi All,
Need help on below script
for g in `cat /home/sid.txt`
do
for h in `cat /home/dev.txt`
do
symmaskdb -sid $g -dev $h list assign |grep FA |head -1|awk '{print $2}' > tt1.txt
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cat /home/sid.txt
**************
123
235
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Discussion started by: ranjancom2000
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Hi Team,
I just want to check whether my nested if loop used is correct or not.
if ]
if ]
export1
else
export2
fi
else
if ]
export3
else
export4
fi
fi
Thanks
Shiva (5 Replies)
Discussion started by: shivashankar_S
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4. UNIX for Dummies Questions & Answers
Greetings,
Would anyone be able to tell me why this nested loop doesn't seem to work in any variation?
for i in {1..8}
do
echo "i is "$i
for j in {1..i}
do
echo "j is "$j
done
doneoutput is always along the lines of
i is 1... (7 Replies)
Discussion started by: barnhillec
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5. Shell Programming and Scripting
Hi,
How to use values in one for loop to other for loop.
say "$sf_rel" variable has values "2011/W2 2011/G2" I want to use these values in inner for loop to process properly.
$branch variable has G2 and 6
What is happening is outer for loop $i has 2011/W2 it is entering into inner... (3 Replies)
Discussion started by: Anjan1
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6. Shell Programming and Scripting
Hi,
I have the following script which is two while loops, but it is working only for the Inner loop without going back to the outer loop.
the aim of this script is to remove data files from memory after each five times for each setting of the rotate parameter
#!/bin/csh
set hdir =... (1 Reply)
Discussion started by: moon218
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7. Shell Programming and Scripting
Hello I have some nested loop to display files and form menu item.
The part of the code is below.
I found that after runnining the script for a while the display becomes very slow.
Does ksh shell provided any easy way to release variables, reinit, etc.
while ];do
script=0
... (2 Replies)
Discussion started by: ekb
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Hi all,
I'm having problems with the setting a variable in a nested if statement. It doesn't seem to change even if it mets the 'if' condition.
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9. Shell Programming and Scripting
I have two do loops. When I break of the inner loop it doesn't go back to the outer loop but exit the program. (5 Replies)
Discussion started by: chinog
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MPI_Recv(3) MPI MPI_Recv(3)
NAME
MPI_Recv - Blocking receive for a message
SYNOPSIS
int MPI_Recv(void *buf, int count, MPI_Datatype datatype, int source, int tag,
MPI_Comm comm, MPI_Status *status)
OUTPUT PARAMETERS
buf - initial address of receive buffer (choice)
status - status object (Status)
INPUT PARAMETERS
count - maximum number of elements in receive buffer (integer)
datatype
- datatype of each receive buffer element (handle)
source - rank of source (integer)
tag - message tag (integer)
comm - communicator (handle)
NOTES
The count argument indicates the maximum length of a message; the actual length of the message can be determined with MPI_Get_count .
THREAD AND INTERRUPT SAFETY
This routine is thread-safe. This means that this routine may be safely used by multiple threads without the need for any user-provided
thread locks. However, the routine is not interrupt safe. Typically, this is due to the use of memory allocation routines such as malloc
or other non-MPICH runtime routines that are themselves not interrupt-safe.
NOTES FOR FORTRAN
All MPI routines in Fortran (except for MPI_WTIME and MPI_WTICK ) have an additional argument ierr at the end of the argument list. ierr
is an integer and has the same meaning as the return value of the routine in C. In Fortran, MPI routines are subroutines, and are invoked
with the call statement.
All MPI objects (e.g., MPI_Datatype , MPI_Comm ) are of type INTEGER in Fortran.
The status argument must be declared as an array of size MPI_STATUS_SIZE , as in integer status(MPI_STATUS_SIZE) .
ERRORS
All MPI routines (except MPI_Wtime and MPI_Wtick ) return an error value; C routines as the value of the function and Fortran routines in
the last argument. Before the value is returned, the current MPI error handler is called. By default, this error handler aborts the MPI
job. The error handler may be changed with MPI_Comm_set_errhandler (for communicators), MPI_File_set_errhandler (for files), and
MPI_Win_set_errhandler (for RMA windows). The MPI-1 routine MPI_Errhandler_set may be used but its use is deprecated. The predefined
error handler MPI_ERRORS_RETURN may be used to cause error values to be returned. Note that MPI does not guarentee that an MPI program can
continue past an error; however, MPI implementations will attempt to continue whenever possible.
MPI_SUCCESS
- No error; MPI routine completed successfully.
MPI_ERR_COMM
- Invalid communicator. A common error is to use a null communicator in a call (not even allowed in MPI_Comm_rank ).
MPI_ERR_TYPE
- Invalid datatype argument. May be an uncommitted MPI_Datatype (see MPI_Type_commit ).
MPI_ERR_COUNT
- Invalid count argument. Count arguments must be non-negative; a count of zero is often valid.
MPI_ERR_TAG
- Invalid tag argument. Tags must be non-negative; tags in a receive ( MPI_Recv , MPI_Irecv , MPI_Sendrecv , etc.) may also be
MPI_ANY_TAG . The largest tag value is available through the the attribute MPI_TAG_UB .
MPI_ERR_RANK
- Invalid source or destination rank. Ranks must be between zero and the size of the communicator minus one; ranks in a receive (
MPI_Recv , MPI_Irecv , MPI_Sendrecv , etc.) may also be MPI_ANY_SOURCE .
LOCATION
recv.c
7/27/2010 MPI_Recv(3)