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# nmxptool: open-source and cross-platform software for Nanometrics seismic data acquisition
Matteo Quintiliani - Istituto Nazionale di Geofisica e Vulcanologia - Italy
Mail bug reports and suggestions to <matteo.quintiliani@ingv.it>
Website: http://mednet.rm.ingv.it/nmxptool.php
nmxptool and libnmxp have been developed for interacting with NaqsServer and DataServer of Nanometrics Inc.
### INTRODUCTION
The Nanometrics servers NaqsServer and DataServer can provide on-line access
to seismic data and state-of-health information accepting TCP/IP connections
and forwarding the requested data to each client program. NaqsServer collates
and stores in near-real-time incoming data in ringbuffers whereas DataServer
provides data of the past stored in NaqsServer ringbuffers. In order to
implement the Nanometrics subscription protocols, the author developed a
software consisting of a library called libnmxp and a tool called nmxptool. The
library exposes a set of documented APIs which allow to communicate with the
Nanometrics servers. The tool, based on libnmxp, allows to retrieve or monitor
real-time data and data of the past.
nmxptool can be used in three different ways:
* stand-alone to monitor data or save retrieved data in mini-seed records
* launched as an Earthworm module to redirect data into the EW-rings
* like a Seed-Link plug-in to feed the SL-server
The main contribute, as regards other similar software, is the capability to
manage Raw Stream connections by buffering and sorting all received packets,
included the retransmitted ones, guaranteeing a good compromise between data
continuity and low latency. Besides, nmxptool allows to retrieve Data-On-Demand
with minimum delay after request. Software is open-source and released under
GNU Library General Public License. It has been written in C language using the
GNU Build Tools (automake, autoconf and configure script) and taking in account
the cross-platform compilation aspects, in fact, it can run on almost all the
Unix-like operating systems, Mac OS X, Windows and either 32-bit or 64-bit
architectures.
### DEPENDENCIES
Optional libraries:
* libmseed-2.3 or later: <http://www.iris.edu/software/libraries/>
The Mini-SEED library. A C library framework for manipulating and
managing SEED data records. Author: Chad Trabant, IRIS DMC
* Earthworm 6.2 or later: <http://www.isti2.com/ew/>
* Seedlink, SeisComP - <http://www.gfz-potsdam.de/geofon/seiscomp/>
Seedlink is a system for near real time seismic data distribution.
* POSIX Threads library (pthread)
On Windows, nmxptool has been compiled with "Pthreads-w32 release 2.8.0"
<http://sourceware.org/pthreads-win32/>
Read section INSTALLATION below.
### QUICK INSTALLATION
tar xvfz nmxptool-X.X.X.tar.gz
cd nmxptool-X.X.X
./configure
make
src/nmxptool --version
make install
OR
make install-ew-bin
make install-ew-conf (ONLY THE FIRST TIME)
OR
make install-seiscomp-bin
make install-seiscomp-templates (ONLY THE FIRST TIME)
OR
cp src/nmxptool <where_you_want>
nmxptool --help
For binary installation see section INSTALLATION BINARIES below.
### INSTALLATION
nmxptool and libnmxp have been developed using GNU Build Tools
(automake, autoconf and configure script) taking in account the
POSIX Cross-Platform aspects. So you should be able to compile
and install them everywhere you can launch the following commands:
./configure --enable-FEATURE1 ... VAR1=... VAR2=...
make
make install
Options for nmxptool 'configure' script:
Disabling optional Features
--disable-libmseed disable saving data in mini-SEED records
--disable-ew do not compile nmxptool as Earthworm module
--disable-seedlink do not compile nmxptool as Seedlink plug-in
Some influential environment variables:
EW_HOME Earthworm home directory
EW_VERSION Earthworm version directory
EW_PARAMS Earthworm configuration files directory
GLOBALFLAGS C compiler flags for Earthworm
'configure' adds -I${EW_HOME}/${EW_VERSION}/include to CFLAGS
Examples:
- 'configure' tries to compile all features
./configure CFLAGS="-O2 -Wall -pipe -I/<anywhere>/libmseed" \
LDFLAGS="-L/<anywhere>/libmseed"
- Enable only Earthworm feature and set related variables
./configure --disable-libmseed --disable-seedlink \
CFLAGS="-O2 -Wall -pipe" \
EW_HOME="/home/ew" \
EW_VERSION="v7.2" \
EW_PARAMS="${EW_HOME}/${EW_VERSION}/params" \
GLOBALFLAGS="-D_SPARC -D_SOLARIS"
or, for example
GLOBALFLAGS="-m32 -Dlinux -D__i386 -D_LINUX -D_INTEL -D_USE_SCHED -D_USE_PTHREADS -D_USE_TERMIOS"
GLOBALFLAGS="-D_MACOSX -D_INTEL -D_USE_PTHREADS -D_USE_SCHED "
GLOBALFLAGS="-D_WINNT -D_INTEL -D_CRT_SECURE_NO_DEPRECATE -D_USE_32BIT_TIME_T"
Use the last one to compile Earthworm feature under Windows-MinGW.
- Enable only libmseed and seedlink
./configure --disable-ew \
CFLAGS="-O2 -Wall -pipe -I/<anywhere>/libmseed" \
LDFLAGS="-L/<anywhere>/libmseed"
Verifying the version and enabled features after compilation:
src/nmxptool --version
nmxptool 2.1.0, tool for Nanometrics Protocols
Private Data Stream 1.4, Data Access Protocol 1.0
Enabled features: libmseed YES, SeedLink YES, Earthworm YES.
Using pthread: YES.
- libmseed, The Mini-SEED library - <http://www.iris.edu/manuals/>
If available within include and library path,
this library allows to save retrieved data in Mini-SEED records.
You might add to CFLAGS this `"-I/<anywhere>/libmseed"`
and to LDFLAGS this `"-L/<anywhere>/libmseed"`,
do not forget to run 'ranlib libmseed.a' or similars.
- ew, Earthworm System - http://www.isti2.com/ew/
nmxptool is included into the official Earthworm distribution since the version 7.2.
Anyway, you can compile nmxptool outside the EW distribution, for example, to upgrade.
Before launching 'configure', run the appropriate script from directory 'environment', the compilation depends on the following environment variables:
- $EW_HOME
- $EW_VERSION
- $EW_PARAMS
- $GLOBALFLAGS
'configure' looks for necessary Earthworm object files inside `$EW_HOME/$EW_VERSION/lib`
and link them to nmxptool in order to enable Earthworm module feature.
If some of object files are missing then it will attempt to discover sources
dependents on your operating system and it will compile them before linking.
Install binary and configuration files for Earthworm:
make install-ew-bin
make install-ew-conf (ONLY THE FIRST TIME)
The first command copies nmxptool binary in $EW_HOME/$EW_VERSION/bin
The second command copies earthworm/nmxptool.d, earthworm/nmxptool.desc in $EW_PARAMS
If you are upgrading nmxptool then you might do that:
make install-ew-doc
Last command copies nmxptool_ovr.html and nmxptool_cmd.html into the directories
`$EW_HOME/$EW_VERSION/ewdoc/WEB_DOC/ovr` and `$EW_HOME/$EW_VERSION/ewdoc/WEB_DOC/cmd`
- seedlink, SeisComP - <http://www.gfz-potsdam.de/geofon/seiscomp/>
Seedlink is a system for near real time seismic data distribution.
Inside the directory 'src' has been copied files
'seedlink_plugin.c' and 'seedlink_plugin.h' from 'plugin.c' and 'plugin.h'
belonging to the SeisComP 2.5 distribution.
If your SeisComP root directory is not equal to /home/sysop/seiscomp,
you have to launch the script 'configure' in the following way:
./configure ... ... SEISCOMPDIR=/<where>/<seiscompdir>/<is>
Install binary and template files for SeedLink:
make install-seiscomp-bin
make install-seiscomp-templates (ONLY THE FIRST TIME)
The first command copies nmxptool binary in %SEISCOMPDIR%/acquisition/bin
The second command copies the directories
seiscomp_templates/135_nmxptool
seiscomp_templates/136_nmxptool_dod
in %SEISCOMPDIR%/acquisition/templates/source/
After, you can use:
seiscomp config
### INSTALLATION BINARIES
Download the binary distribution for your operating system from the
web site <http://mednet.rm.ingv.it>, unpack it and copy the files where you want.
Linux box within the SeisComp3 directory:
wget http://mednet.rm.ingv.it/downloads/soft/nmxptool-2.1.0-bin-i686-pc-linux-gnu.tar.gz
tar xvfz nmxptool-2.1.0-bin-i686-pc-linux-gnu.tar.gz
cd nmxptool-2.1.0-bin-i686-pc-linux-gnu/
cp bin/nmxptool ~/seiscomp3/acquisition/bin/
cp -R seiscomp_templates/135_nmxptool ~/seiscomp3/acquisition/templates/source/
cp -R seiscomp_templates/136_nmxptool_dod ~/seiscomp3/acquisition/templates/source/
Solaris Sparc Machine within Earthworm environment:
wget http://mednet.rm.ingv.it/downloads/soft/nmxptool-2.1.0-bin-sparc-sun-solaris2.10.tar.gz
gunzip -c < nmxptool-2.1.0-bin-sparc-sun-solaris2.10.tar.gz | tar xvf -
cd nmxptool-2.1.0-bin-sparc-sun-solaris2.10/
cp bin/nmxptool $EW_HOME/$EW_VERSION/bin/
cp earthworm/nmxptool.d $EW_PARAMS/
cp earthworm/nmxptool.desc $EW_PARAMS/
Inside the same directory 'earthworm' are also available the documentation html files nmxptool_cmd.html and nmxptool_ovr.html
Windows-XP, Windows2000:
Download http://mednet.rm.ingv.it/downloads/soft/nmxptool-2.1.0-bin-i686-pc-mingw32.zip
Unzip the file.
Copy the files nmxptool.exe and pthreadVC2.dll where you want.
### SUPPORTED PLATFORMS AND 64-Bit ISSUES
nmxptool has been written in C language using the GNU Build Tools
(automake, autoconf and configure script) and taking in account
the cross-platform compilation aspects, in fact, it can run on
almost all the Unix-like operating systems, Mac OS X, Windows
and either 32-bit or 64-bit architectures.
nmxptool has been successfully compiled and tested on the following operating systems and architectures:
-------------------------------------------------
| | Intel Intel PowerPC SPARC |
| | 32-bit 64-bit 32-bit 64-bit |
|-------------------------------------------------|
| Linux | X X |
| Solaris | X X X |
| Mac OS X | X X |
| FreeBSD | X |
| Windows | X |
-------------------------------------------------
N.B. No test has been done on Earthworm when nmxptool is compiled with 64-bit option (-m64)
### NAQSSERVER CONFIGURATION
- Data continuity when short disconnections to NaqsServer occur
Inside the section Datastream of the file Naqs.ini set DataBufferLength to a high value.
[ Datastream ]
Port = 28000 // TCP port for control/data connections to Naqs
Password = none // access password (not used in version 1.3)
MaxConnections = 10 // maximum number of simultaneous connections
SocketType = Direct // connection type (Direct or Callback)
DataBufferLength = 100 // Buffer length for data channels (# packets)
- Packet retransmission
Inside the section NetworkInterface of the file Naqs.ini enable RetxRequest.
If RetxRequest is not enabled then MaxTolerableLatency is ineffective.
[ NetworkInterface ]
Port = 32000 // UDP port for incoming NMX data (usually 32000)
SendDelay = 250 // milliseconds to delay after each send
RetxRequest = Enabled
MulticastGroup = 224.1.1.1
### DOCUMENTATION
- Print nmxptool help:
nmxptool --help
- Earthworm module: earthworm/nmxptool_cmd.html nmxptool_ovr.html
- SIGNAL HANDLING
You can send the following signals to nmxptool:
Signals INT QUIT TERM : Sending these signals to nmxptool causes it
to immediately attempt to gracefully terminate.
It may take several seconds to complete exiting.
Signal ALRM : Print current info about Raw Stream buffer.
Signal USR1 : Force to close a connection and open again
without quitting the program. Only for connection
in near real-time to NaqsServer.
Signals HUP PIPE : Ignored. (SIG_IGN)
### HISTORY
Read file HISTORY for release notes.
### ACKNOWLEDGEMENT
In no particular order:
- Stefano Pintore - INGV (Istituto Nazionale di Geofisica e Vulcanologia)
- Salvatore Mazza - INGV
- Marco Olivieri - INGV
- Luigi Falco - INGV
- Paul Friberg - ISTI (Instrumental Software Technologies, Inc.)
- Marian Jusko
- Efthimios Sokos - (University of Patras - Greece)
- Roman Racine - (ETH Zurich - Swiss Seismological Service)
- Jean-Marie Saurel - (Institut de Physique du Globe de Paris)
- Chad Trabant - IRIS (Incorporated Research Institutions for Seismology)
- Sandy Stromme - IRIS
### LICENSE
Software is open-source and released under GNU Library General Public License.
Read file COPYING for details.
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