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140 lines
3.4 KiB
Groff
140 lines
3.4 KiB
Groff
.\" Man page generated from reStructuredText.
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.
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.TH "QP_TUNNEL" "1" "Jun 15, 2019" "2.0" "Quantum Package"
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.SH NAME
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qp_tunnel \- | Quantum Package >
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.
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.nr rst2man-indent-level 0
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.
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.de1 rstReportMargin
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\\$1 \\n[an-margin]
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level \\n[rst2man-indent-level]
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level margin: \\n[rst2man-indent\\n[rst2man-indent-level]]
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-
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\\n[rst2man-indent0]
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\\n[rst2man-indent1]
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\\n[rst2man-indent2]
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..
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.de1 INDENT
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.\" .rstReportMargin pre:
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. RS \\$1
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. nr rst2man-indent\\n[rst2man-indent-level] \\n[an-margin]
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. nr rst2man-indent-level +1
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.\" .rstReportMargin post:
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..
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.de UNINDENT
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. RE
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.\" indent \\n[an-margin]
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.\" old: \\n[rst2man-indent\\n[rst2man-indent-level]]
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.nr rst2man-indent-level -1
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.\" new: \\n[rst2man-indent\\n[rst2man-indent-level]]
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.in \\n[rst2man-indent\\n[rst2man-indent-level]]u
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..
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.sp
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Establishes a tunnel to allow communications between machines within
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different networks, for example multiple MPI slave jobs running on
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different clusters.
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.SH USAGE
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.INDENT 0.0
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.INDENT 3.5
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.sp
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.nf
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.ft C
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qp_tunnel [\-g] (ADDRESS|EZFIO_DIR)
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.ft P
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.fi
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.UNINDENT
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.UNINDENT
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.sp
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\fBEZFIO_DIR\fP is the name of the \fI\%EZFIO\fP directory containing the data,
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and \fBADDRESS\fP is the address of another tunnel.
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.INDENT 0.0
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.TP
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.B \-h, \-\-help
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Displays the help message
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.UNINDENT
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.INDENT 0.0
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.TP
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.B \-g, \-\-get\-input
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Download the EZFIO directory from the remote instance of qp_tunnel.
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.UNINDENT
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.SH EXAMPLE
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.INDENT 0.0
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.INDENT 3.5
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.sp
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.nf
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.ft C
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+\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-+ +\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-+
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| | | |
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| N1_1 N1_2 N1_3 | | N2_1 N2_2 N2_3 |
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| | | | | | | | | |
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| +\-\-\-\-+\-\-\-\-+ | | +\-\-\-\-+\-\-\-\-+ |
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| | | | | |
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| C1 F1 | | F2 C2 |
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| +\-\-\-\-\-\-\-\-\-=\-\-\-\-=\-\-\-\-\-\-\-\-+ |
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| | | |
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+\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-+ +\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-+
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.ft P
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.fi
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.UNINDENT
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.UNINDENT
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.sp
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Imagine you have two clusters, C1 and C2. Each cluster is accessible via SSH
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on a front\-end named respectively F1 and F2. Groups of nodes N1 and N2 have
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been reserved by the batch scheduling system on both clusters.
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Each node in N1 is on the same network as the other nodes of N1, but they
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can’t access the network on which the nodes of N2 are.
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.INDENT 0.0
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.IP 1. 3
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Start a parallel simulation on the cluster C1, running on nodes N1.
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We assume that there is a shared file system, such that F1 can access
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the EZFIO directory. We also assume that F1 can communicate with the
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nodes of N1.
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.IP 2. 3
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Run a tunnel on the front\-end F1 and keep it running:
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.UNINDENT
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.INDENT 0.0
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.INDENT 3.5
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.sp
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.nf
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.ft C
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me@f1 $ qp_tunnel my_directory.ezfio
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Connect to:
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tcp://31.122.230.47:42379
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Ready
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.ft P
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.fi
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.UNINDENT
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.UNINDENT
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.INDENT 0.0
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.IP 3. 3
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On the front\-end F2, run another instance connecting to the other one,
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which will fetch the \fI\%EZFIO\fP directory:
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.UNINDENT
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.INDENT 0.0
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.INDENT 3.5
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.sp
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.nf
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.ft C
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me@f2 $ qp_tunnel \-\-get\-input tcp://31.122.230.47:42379
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Connect to:
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tcp://31.122.209.139:42379
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Communication [ OK ]
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Getting input... my_directory.ezfio ...done
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Ready
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.ft P
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.fi
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.UNINDENT
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.UNINDENT
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.INDENT 0.0
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.IP 4. 3
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Keep the tunnel running, and you can now run a slave simulation within the
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nodes N2.
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.UNINDENT
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.SH AUTHOR
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A. Scemama, E. Giner
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.SH COPYRIGHT
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2019, A. Scemama, E. Giner
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.\" Generated by docutils manpage writer.
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