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Chapter 8. Batch queuing system 83
The batch job is submitted with the command
qsub [options] jobfile
The output from the command looks like this:
nqs-181 qsub: INFO
Request <2227.sn6309>: Submitted to queue <prime> by <jbond(007)>.
The identifier 2227.sn6309 is the request-id of the job. This can be
used to check the status of the job with the qstat command.
The most often encountered error is the following:
nqs-4517 qsub: CAUTION
No such queue <pirme> at local host.
which usually means that the name of the queue is not written correctly
(here pirme instead of prime).
The most important and frequent options to the qsub command are
shown in Table 8.1. Options can be given in a script file as in the example
above or in a command line. The options in the script file are written on
pseudocomment lines starting with the characters #QSUB.
Options can be mixed so that some of them are given in the script file and
some in the command line. If the same options are given, the options in
the command line override the options in the script file.
8.3 Status of the NQE job
When you have submitted a job to be executed, you usually want to
know how the job is running or if it is running at all. There are several
different commands for checking the status of jobs. The easiest to use
is the cqstat command, which starts a graphical tool to check out the
status of jobs. Figure 8.1 shows an example of a cqstat session.
You have access only to those jobs that are owned by you. With the
cqstat command you can also delete running jobs. This is done by
first selecting the job to be deleted and after that selecting the Delete
command from the Action menu. The cqstat command needs an X
Window System to work.
Another command to get the status of batch jobs is qstat. This is a
text based tool and it does not require the X Window System. The qstat
command has special options for MPP machines only. Table 8.2 lists
the most used options of the qstat command. These options accept
either a queue name or a request id. If both are missing, the command
shows requested data from all queues. Listing 8.1 shows an example of
the output of command qstat -a. Listing 8.2 shows an example of the
output of the command qstat -f request-id.
- Cray T3E 1
- User’s Guide 1
- Cray T3E User’s Guide 3 3
- Contents 4
- Contents 5 5
- B Glossary 113 6
- Bibliography 118 6
- Index 120 6
- Introduction 7
- 1.2 Usage policy 8
- 1.3 Overview of the system 9
- 1.4 Programming environment 9
- 10 Cray T3E User’s Guide 10
- Chapter 1. Introduction 11 11
- 12 Cray T3E User’s Guide 12
- Using the Cray T3E at CSC 13
- 2.2 Files 14
- 2.3 Editing files 16
- 2.5 Executing in batch mode 17
- 2.6 More information 18
- The Cray T3E system 20
- 3.2 Distributed memory 21
- 3.3 Processing elements 21
- 3.4 Processor architecture 23
- 3.5 Local memory hierarchy 24
- 26 Cray T3E User’s Guide 26
- Processing Element 27
- I/O Controller 27
- Interconnection 27
- Network 27
- 3.9 File systems 28
- 3.10 Resource monitoring 29
- 30 Cray T3E User’s Guide 30
- 3.11 More information 31
- Program development 32
- 4.3.1 BLAS 34
- 4.3.2 LAPACK 34
- 4.3.3 BLACS 35
- 4.3.4 PBLAS and ScaLAPACK 35
- 4.3.5 Details 35
- 36 Cray T3E User’s Guide 36
- 4.6 More information 38
- Fortran programming 40
- 5.2 Basic usage 41
- 5.4 Compiler options 42
- 5.5 Optimization options 42
- 5.6 Optimizing for cache 44
- 5.7 Compiler directives 45
- 5.8 Fortran 90 modules 48
- 5.9 Source code preprocessing 49
- 5.10 More information 51
- C and C++ programming 52
- 6.2 The C compiler 53
- 6.3 Calling Fortran from C 54
- 6.4 C compiler options 55
- #pragma _CRI symmetric var 59
- #pragma _CRI unroll [n] 59
- 6.6 The C++ compiler 61
- 6.7 More information 61
- Interprocess communication 62
- 7.2.1 Format of the MPI calls 63
- 7.2.2 Some MPI routines 64
- 7.2.3 An example of using MPI 64
- 7.2.5 MPI data types 67
- 7.3.1 Using PVM on the T3E 68
- #include <mpp/shmem.h> 71
- INCLUDE ’mpp/shmem.fh’ 71
- 7.4.2 Data addresses 72
- 7.4.4 Reduction routines 74
- 7.4.6 Example of using SHMEM 76
- 78 Cray T3E User’s Guide 78
- 0:c= 10121416 78
- 1:c= 2468 78
- 80 Cray T3E User’s Guide 80
- Batch queuing system 81
- 82 Cray T3E User’s Guide 82
- # QSUB -l p_mpp_t=7000 82
- 8.3 Status of the NQE job 83
- 84 Cray T3E User’s Guide 84
- 8.4 Deleting an NQE batch job 86
- 8.5 Queues 86
- 8.6 More information 87
- Programming tools 88
- 9.2 Program Browser 89
- 9.3 Debugging programs 92
- 9.3.2 Examining core files 93
- 94 Cray T3E User’s Guide 94
- 9.4.1 MPP Apprentice 95
- 9.4.2 The appview command 98
- 9.4.3 PAT 98
- 9.5.1 The VAMPIRtrace library 100
- 102
- 9.5.3 More information 103
- Miscellaneous notes 104
- 10.1.3 The CPU clock timer 105
- 10.1.4 Example of timing 106
- 108 Cray T3E User’s Guide 108
- 10.4 More information 110
- About CSC 111
- 112 Cray T3E User’s Guide 112
- Glossary 113
- 114 Cray T3E User’s Guide 114
- Appendix B. Glossary 115 115
- Metacomputer Environment 116
- Bibliography 118
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