11 November 2012

278. Monitoring your office with a webcam and zoneminder on debian

Update: so this worked fine with my thinkpad sl410 camera, but I'm having a lot of trouble getting an image off of my usb Pixio cam (Z-Star Microelectronics Corp. USB 1.1 Webcam) with "Got signal 11 (Segmentation fault), crashing" and "'zmc -d /dev/video0' exited abnormally, exit status 11". Zoneminder feels annoyingly temperamental at times. Anyway, I ended up hacking together a poor but functional solution by using a shell script and streamer to save stills every few seconds, then letting zoneminder analyse and capture. Setting up two Airlink 101 AIC250W was remarkably easy though (although I remember having a lot of trouble in the past). I've also experimented with motion,  and although I'm having issues with the image colours it's working very well.

Original post
While I figured that the head of school might have a universal key allowing access to all the offices in the department (the cleaners do), finding out that he had used it to open my office for a trivial purpose has ticked me off.

While you may not have an expectation of privacy at your company office, I certainly do when it comes to my department office.

So I'm not too happy about that, and while monitoring my office will not prevent future breaches of privacy, it will at least ease some of the paranoia if it turns out that my office doesn't routinely get entered.

This post only deals with a locally attached webcam -- I struggled with remote wifi-connected webcams a few years ago with little luck.
sudo apt-get install zoneminder
sudo apt-get install v4l-conf v4l2ucp
sudo cp /etc/zm/apache.conf /etc/apache2/sites-enabled/zm.conf
sudo service apache2 restart

Figure out what video devices you have:
ls /dev/video* 
/dev/video0
and make sure www-data can access them
sudo adduser www-data video

You can now navigate to http://localhost/zm
Click on 'add monitor'

These settings are fine.

Note: these settings did NOT work. Keep reading the post...

Setting up the camera seemed deceptively easy -- everything went fine, except actually getting an image.

note the red colour for the video device. No good.

Looking at the log I was getting
Failed to set video format: Invalid argument
'zmc -d /dev/video0' exited abnormally, exit status 255


which is when I googled and found this post: http://rainbow.chard.org/2012/04/24/using-zoneminder-with-a-cheap-cctv-camera/

Basically, getting the settings absolutely right matters!
v4l-info

which told me
video capture
    VIDIOC_ENUM_FMT(0,VIDEO_CAPTURE)
 index                   : 0
 type                    : VIDEO_CAPTURE
 flags                   : 0
 description             : "YUV 4:2:2 (YUYV)"
 pixelformat             : 0x56595559 [YUYV]
    VIDIOC_ENUM_FMT(1,VIDEO_CAPTURE)
 index                   : 1
 type                    : VIDEO_CAPTURE
 flags                   : 1
 description             : "MJPEG"
 pixelformat             : 0x47504a4d [MJPG]
    VIDIOC_G_FMT(VIDEO_CAPTURE)
 type                    : VIDEO_CAPTURE
 fmt.pix.width           : 1600
 fmt.pix.height          : 1200
 fmt.pix.pixelformat     : 0x47504a4d [MJPG]
 fmt.pix.field           : NONE
 fmt.pix.bytesperline    : 0
 fmt.pix.sizeimage       : 5760000
 fmt.pix.colorspace      : unknown
 fmt.pix.priv            : 0

so changed my settings to
It took a bit of trial and error

Next, I was receiving
Got unexpected memory map file size 49153524, expected 230401524
and this post helped me:
http://jared-oberhaus-tech-notes.blogspot.com.au/2011/12/im-trying-to-capture-video-from-device.html

Our old friend shmmax eh? Apparently I had about 32 mb set up (!) on my laptop, so I changed it to 671088640 (640 mb)

sudo sysctl -w kernel.shmmax=671088640

See this post for how to make it permanent.

Anyway, once all is well you will hopefully see something like this (note the colours -- the /dev/ is a nice orange, although the log is still an unhappy red)
Now we can actually do things. Click on the name of your device (here: laptop) and you should get something like

You can now click on Zones in the main menu and add one (takes a little bit of trial and error, but you'll get there). To get motion detection, and thus get ZM to save things, change the mode from Monitor to e.g. modec

Your files will  be found under /usr/share/zoneminder/events but you can change that using the setting menu which you can access in the top right corner in the main window.

So that's pretty much it. There are a couple of settings you might want to fiddle with:
You might want to set up ffmpeg to allow for generation of video fles


So I got fed up with one of my cameras not working together with zoneminder. As a temporary fix I set zoneminder to use 'file' instead of 'local' or 'remote'. So now zoneminder looks at ~/webcam/current.jpg.
In that directory, a script is running (you need to install streamer):

#!/bin/bash
while true
do streamer -c /dev/video0 -b 24 -s 640x480 -o current.jpeg -q 2> /dev/null
        sleep 1
done

Also, I created a directory and symmlinked it to /usr/share/events to prevent my root partition from filling up:
mkdir zm/
chown www-data zm/
sudo rm /usr/share/zoneminder/events -rf
sudo ln -s /home/me/webcam/zm /usr/share/zoneminder/events

07 November 2012

277. Compiling LSDALTON on debian testing/wheezy

I'm writing this as a separate post even though it's really an integral part of the compilation of Dalton 2011 which I described here: http://verahill.blogspot.com.au/2012/11/compiling-dalton-2011-on-debian.html

LSDALTON supports Open MP which is neat -- it means you can't run across nodes, but it'll automatically take advantage of the resources on the node it's run on.

Anyway.

Assuming you've followed that post, you're now ready to compile LSDALTON.

cd ~/tmp/Dalton2011_release/LSDALTON/
./configure

There are fewer questions this time so I won't list them -- basically, use gfortran and gcc, and compile with OpenMP support.

This gives you a Makefile.config -- edit it as shown. Note that I have the debian libblas3 and libgomp1 packages installed.

ARCH        = linux
FMMDIR      = mm
#
#
CPPFLAGS      = -DSYS_LINUX -D_FILE_OFFSET_BITS=64 -D'INSTALL_BASDIR="/opt/dalton/basis"' -DGFORTRAN=471 -DVAR_LINSCA -DIMPLICIT_NONE
F77            = gfortran
F90            = gfortran
FLNK           = gfortran
CC             = gcc
RM             = rm -f
FFLAGS         = -march=native -O1 -ffast-math -funroll-loops -ftree-vectorize -ffloat-store -fno-whole-file
F90OPTFLAGS    = -march=native -O1 -ffast-math -funroll-loops -ftree-vectorize -ffloat-store -I. -x f95-cpp-input -ffloat-store -fopenmp -fno-whole-file
SAFEFFLAGS     = -march=native -O1 -ffast-math -funroll-loops -ftree-vectorize -ffloat-store -fno-whole-file
CFLAGS         = -march=native -O1 -ffast-math -funroll-loops -ftree-vectorize -std=c99 -DRESTRICT=restrict -DFUNDERSCORE=1 -ffloat-store -DUSE_UNDERSCORES
INCLUDES       =  
LIBS           = -lblas -lgomp 
INSTALLDIR     = /opt/dalton/bin
PDPACK_EXTRAS  = linpack.o eispack.o gp_dlapack.o gp_zlapack.o
AR             = ar
ARFLAGS        =  rvs
#
default : linux.x
#
# Suffix rules C
#
.SUFFIXES : .F90 .f90 .F .o .c

.F90.o:
        $(F90) $(INCLUDES) $(CPPFLAGS) $(F90OPTFLAGS) -c $*.F90

.f90.o:
        $(F90) $(INCLUDES) $(CPPFLAGS) $(F90OPTFLAGS) -c $*.f90

.F.o:
        $(F77) $(INCLUDES) $(CPPFLAGS) $(FFLAGS) -c $*.F

.c.o:
        $(CC) $(INCLUDES) $(CPPFLAGS) $(CFLAGS) -c $*.c

Now compile!
make

Test your installation:
cd test/
 ./TEST all
[..]
-----------------------------------------------------------
TEST ENDED PROPERLY

#####################################################################
                              Summary
#####################################################################

ALL TESTS ENDED PROPERLY!
date and time         : Wed Nov  7 14:57:29 EST 2012

06 November 2012

276. Compiling Dalton 2011 on Debian Testing/Wheezy

UPDATE: To deal with basis sets and 'GPOPEN' errors, see bottom of this post
UPDATE2: Because of the basis set issue the code doesn't run in parallel!
UPDATE 3: All issues are solved by -O0 or -O1. The code now works in parallel and you can define basis sets the usual way. Performance-wise? No idea. So you can compile with -O3 or -O2 but the code doesn't read basis sets the intended way, or you use -O1 or -O0 and it works.

THIS WORKS NOW  :)

Original post:
I've been wanting to use dalton for a long time, but it's been difficult to compile dalton 2.0, and I didn't realise until a few days ago that there's a newer version.
See here for a description of how to compile on ROCKS 5.4.3 (i.e. Centos 5.6) which uses gfortran v 4.1. The main difference between compiling on CentOS 5.6 and Debian Wheezy is in how you edit the Makefile.config. More specifically, compile works a whole lot better with -fno-whole-file and -march=native..

Other than that the steps are the same.

In terms of running, there's an issue with the discoverability of the basis sets which I don't really understand. There's a solution to that at the end of the file.

Before you get started you may want to compile ATLAS as shown here: http://verahill.blogspot.com.au/2012/05/compile-atlas-blas-on-debian-testing.html

Alternatively, you should get the ACML libraries.

NOTE: The compile went without a hitch on my AMD II X3, AMD Phenom II X6 and Intel i5-2400.
My AMF FX 8150 is a trickier story though: it failed to compile with acml libs (gfortran64_fma4_int64) for -O3 and -O2, but compiled with -O1 and -O0. The -O1 binary segfaults though. Never tried the -O0 binary.

WARNING: If you run dalton in parallel it will -- for some reason -- delete your scratch folder when the run is over. The scratch directory is defined in the  /opt/dalton/bin/dalton script (TMPDIR)

License:
First go to http://daltonprogram.org/licence/ and fill out the license agreement. Once that's done you'll get an automated email with a license form, which you should print, sign, scan and email to the email address you're given. Once your form has been processed you'll be sent another email with a user name and password. I received my user name and password the next business day.

Go online and download the source file, Dalton2011_release_v0.tgz, and put it in ~/tmp. Sort out where you want your program to end up
sudo mkdir /share/apps/dalton
sudo chown $USER /share/apps/dalton
mkdir /share/apps/dalton/bin /share/apps/dalton/basis /share/apps/dalton/lsdalton

Next,
cd ~/tmp
tar xvf Dalton2011_release_v0.tgz
cd Dalton2011_release/DALTON
./configure 

and answer all the questions:
./configure

------------------------------------------------------------------
   Configuring the DALTON Makefile.config and "dalton" run script
------------------------------------------------------------------

INFO: Operating system from 'uname -s' : Linux
INFO: Processor type   from 'uname -m' : x86_64
No architecture specified, attempting auto-configuration:
This appears to be a -linux architecture. Is this correct? [Y/n] 
--> Installing DALTON on a -linux computer


Note that 64-bit integers are desirable for Cholesky and very large
scale CI, otherwise the most important effect is that some files will be bigger.

If you choose 64-bit integers, be careful that any system library
routines (incl. MPI) also use 64-bit integers!

Do you want 64-bit integers? [y/N] Do you want to install the program in a parallel MPI version? [Y/n] 
-->WARNING: Makefiles for MPI architecture are difficult to guess
   Please compare the generated Makefile.config with local documentation.

   Checking for Fortran compiler ...
   from this list: mpif90 mpiifort ifort pgf95 pgf90 gfortran g95 

Compiler /usr/bin/mpif90 found, use this compiler? [Y/n] 
-->Compiler mpif90 found and accepted.
Is backend compiler gfortran ? [Y/n] 
   Checking for C compiler ...
   from this list: mpicc  mpiicc   icc ecc pgcc gcc 

Compiler /usr/bin/mpicc found, use this compiler? [Y/n] 
-->Compiler mpicc found and accepted.

Testing existence of libraries in this order:
 libacml.a libmkl.so libmkl_p3.a libatlas.a libblas.a
Directory search list for libraries:
  /opt/ATLAS/lib /home/me/tmp/ATLAS/build/lib /lib /usr/local/lib /usr/lib /usr/local/lib/ATLAS /lib64 /usr/lib64 /usr/local/lib64 

Do you want to replace this with your own directory search list? [y/N] Found /opt/ATLAS/lib/libatlas.a, use it? [Y/n] 
-->The following mathematical library(ies) will be used:
   -L/opt/ATLAS/lib -llapack -llapack -lf77blas -latlas


DALTON uses almost 100 Megabytes of static
allocations, in addition to the dynamic allocation.

DALTON has the possibility to reserve an amount of static memory
for storing two-electron integrals in direct and parallel calculations
Storing some or all of the 2-el. integrals in memory will speed up
direct and parallel calculations (and in particular the latter).
NOTE: This will increase the static memory allocation used by DALTON

Would you like to activate the possibility of storing 2-el.int. in memory? [y/N] How many MB to use for storing 2-el. integrals? 
-->Program will be installed with 300 MB (39000000 words) used for storing 2-el. integrals

Maximum amount of work memory for dynamic allocations can be changed
at run time with the environment variable WRKMEM (in REAL*8 words = megabytes/8)
or by using the -M option to the run script: "dalton -M mb ..." (in megabytes).
We recommend at least 200 MB work memory,
larger for correlated calculations, but it should for maximum
efficiency NOT exceed available physical memory per CPU in parallel calculations.

How many MB to use as default for work memory (hit return for default of 1000 MB)? 
-->Program will be installed with a default work memory of 3900 MB (511000000 words)

-->Current directory is /home/me/tmp/Dalton2011_release/DALTON

Use default ../bin as installation directory for DALTON binaries and scripts? [Y/n] Please enter another installation directory: 
-->DALTON executable and script will be placed in /opt/dalton/bin directory


-->Default basis set directory will be /home/me/tmp/Dalton2011_release/DALTON/../basis/

Use this directory as default basis set directory? [Y/n] 
Please choose another default basis set directory (must end with /) 
-->Default basis set directory will be /opt/dalton/basis/


-->Job specific directories under $SCRATCH/$USER
-->will be used for temporary files when running DALTON

Use SCRATCH=/work as default root scratch space in "dalton" run script? [Y/n] Please enter default root scratch directory: 
-->Creating Makefile.config ...
gfortran version 471 prc=x86_64
INFO: Compiling with 32-bit integers.
INFO: Make sure pre-compiled BLAS, MPI etc. libraries are also with 32-bit integers!!!

Proper 64-bit file access detected.

-->Creating the DALTON run-script in /opt/dalton/bin

   The configuration of DALTON has finished succesfully.
   Check compiler flags etc. in Makefile.config and run "make" to get executable.

which generates Makefile.config. Edit it and

  • change the -march to native. 
  • add -fno-whole-file to avoid internal compiler errors
  • change optimisation level to -O1 (O0 is ok, O2 and O3 give GPOPEN problems)

Like this:

ARCH        = linux
#
#
CPPFLAGS      = -DVAR_GFORTRAN -DSYS_LINUX -DVAR_MFDS -D'INSTALL_WRKMEM=131000000' -D'INSTALL_MMWORK=65000000' -D_FILE_OFFSET_BITS=64 -DVAR_MPI -DGFORTRAN=471 -DIMPLICIT_NONE
F90           = mpif90
CC            = mpicc
LOADER        = mpif90
RM            = rm -f
FFLAGS        = -march=native -O1 -ffast-math -funroll-loops -ftree-vectorize -fbacktrace -fno-whole-file
SAFEFFLAGS    = -march=native -O1 -ffast-math -funroll-loops -ftree-vectorize -fbacktrace -fno-whole-file
CFLAGS        = -march=native -O1 -ffast-math -funroll-loops -ftree-vectorize -std=c99 -DRESTRICT=restrict -DFUNDERSCORE=1
INCLUDES      = -I../include 
MODULES       = -J../modules
LIBS          = -L/opt/ATLAS/lib -llapack -llapack -lf77blas -latlas 
INSTALLDIR    = /opt/dalton/bin
PDPACK_EXTRAS = linpack.o eispack.o gp_zlapack.o gp_dlapack.o
GP_EXTRAS     = 
AR            = ar
ARFLAGS       = rvs
# flags for ftnchek on Dalton /hjaaj
CHEKFLAGS  = -nopure -nopretty -nocommon -nousage -noarray -notruncation -quiet  -noargumants -arguments=number  -usage=var-unitialized
# -usage=var-unitialized:arg-const-modified:arg-alias
# -usage=var-unitialized:var-set-unused:arg-unused:arg-const-modified:arg-alias
#
default : dalton linuxparallel.x
SAFE_FFLAGS_for_ifort = $(FFLAGS)
#
# Parallel initialization
#
MPI_INCLUDE_DIR = 
MPI_LIB_PATH    = -L/usr/lib
MPI_LIB         = -lmpi
#
#
# Suffix rules
# hjaaj Oct 04: .g is a "cheat" suffix, for debugging.
#               'make x.g' will create x.o from x.F or x.c with -g debug flag set.
#
.SUFFIXES : .F .F90 .c .o .i .g .s

.F.o:
        $(F90) $(INCLUDES) $(MODULES) $(CPPFLAGS) $(FFLAGS) -c $*.F 

.F.i:
        $(F90) $(INCLUDES) $(MODULES) $(CPPFLAGS) -E $*.F > $*.i

.F.g:
        $(F90) $(INCLUDES) $(MODULES) $(CPPFLAGS) $(SAFEFFLAGS) -g -c $*.F 

.F.s:
        $(F90) $(INCLUDES) $(MODULES) $(CPPFLAGS) $(FFLAGS) -S -g -c $*.F 

.F90.o:
        $(F90) $(INCLUDES) $(MODULES) $(CPPFLAGS) $(FFLAGS) -c $*.F90 

.F90.i:
        $(F90) $(INCLUDES) $(MODULES) $(CPPFLAGS) -E $*.F90 > $*.i




make
make install

Now just copy the basis sets and ecp data to the proper location:
cd ../
cp basis/* -R /opt/dalton/basis

and edit your ~/.bashrc;
export PATH=$PATH:/opt/dalton/bin

And you should be good to go.


So far I haven't run all the tests, but
./TEST -dalton /opt/dalton/bin/dalton short

gave
#####################################################################
                              Summary
#####################################################################

ALL TESTS ENDED PROPERLY!

date and time         : Wed Nov  7 11:57:02 EST 2012



GPOPEN errors and how to get around them.

To make the story short: if you use -O3 or -O2 for some reason Dalton can't find the basis sets if you declare them the normal way (-O0 and -O1 take care of the problem). However, using ATOMBASIS it works.

Here's an example. Typically you'd specify the basis set for a whole molecule in your .mol file:

BASIS
STO-3G
DFT PROPERTIES TEST 
This doesn't work with O3
AtomTypes=2 Angstrom
        8.    1     
O -0.141254 0.0998816 0.00000
        1.    2     
H 0.589315 0.718039 0.00000
H -0.922641 0.652406 0.00000

but that leads to errors on the debian (but not centos) builds:
   0: Directories for basis set searches:
     /jobs/dalton:/opt/dalton/basis

 MPI node no.:     0
 Reason: ERROR (GPOPEN) UPON OPENING A FILE


 Node      0:  --- SEVERE ERROR, PROGRAM WILL BE ABORTED ---
 ERROR (GPOPEN) UPON OPENING A FILE

and
  Atomic type no.    1
  --------------------
  Nuclear charge:   8.00000
  Number of symmetry independent centers:    1
  Number of basis sets to read;    2
  Basis set file used for this atomic type with Z =   8 :
     "/opt/dalton/basis/                                                                                "


--> ERROR (GPOPEN) UPON TRYING TO OPEN FILE ON UNIT 11
--> with filename /opt/dalton/basis/
--> IOSTAT ERROR CODE RETURNED      21


 QTRACE dump of internal trace stack

 ========================
      level    module
 ========================
          7    GPOPEN      
          6    BASLIB      
          5    READ_MOL    
          4    READIN      
          3    HERMIT      
          2    DALTON      
          1    DALTON main 

whereas

ATOMBASIS
DFT PROPERTIES TEST 
This works with O3
AtomTypes=2 Angstrom
        8.    1    basis=STO-3G 
O -0.141254 0.0998816 0.00000
        1.    2     basis=STO-3G
H 0.589315 0.718039 0.00000
H -0.922641 0.652406 0.00000

works and gives
   0: Directories for basis set searches:
     /opt/dalton/basis:/opt/dalton/basis

 NOTE:    1 informational messages have been issued.
 Check output, result, and error files for "INFO".

and a normal exit:
 CPU time statistics for ABACUS
 ------------------------------

 LINRES     00:00:02      77 %

 TOTAL      00:00:03     100 %


 >>>> Total CPU  time used in ABACUS:   3.21 seconds
 >>>> Total wall time used in ABACUS:   3.22 seconds


                   .-------------------------------------------.
                   | End of Static Property Section (ABACUS) - |
                   `-------------------------------------------'

 >>>> Total CPU  time used in DALTON:   6.04 seconds
 >>>> Total wall time used in DALTON:   6.06 seconds

 
     Date and time (Linux)  : Tue Nov  6 14:54:24 2012
     Host name              : beryllium