[Pw_forum] Pw_forum Digest, Vol 27, Issue 47
Duy Le
ttduyle at gmail.com
Fri Sep 11 21:43:18 CEST 2009
Sorry, I think it was my fault. Last time I suggested someone to hit "reply"
instead of creating a new email starting with "in my last email". I did not
expect he/she used Digest Mode.
Duy
On Fri, Sep 11, 2009 at 3:10 PM, Stefano Baroni <baroni at sissa.it> wrote:
> please, stop hitting "reply" to digest dispatches of forum posts.this
> practice results in the forum members' mailboxes to be cluttered with
> garbage, and also decreases YOUR chance to get meaningul and prompt
> responses to your posts (people tend to throw into the wastebasket messages
> with generic subjects such as " Pw_forum Digest, Vol 27, Issue 47")
> SB
>
> causes nuisances to the mempers of the forum who have their mailboxes
> cluttered with gar
>
> On Sep 11, 2009, at 3:23 PM, Shaptrishi Sharma wrote:
>
> Hi Stefano,
>
> My nband value is 122 as my total number of atoms are 66 .of which 21
> Hydrogen.And if I remove the option nelup and neldw, I got it as "too many
> bands are not converged" thus I increased my vaccum, however it still
> remains the same.
>
> Thanks
> S
>
> On 9/11/09, pw_forum-request at pwscf.org <pw_forum-request at pwscf.org> wrote:
>>
>> Send Pw_forum mailing list submissions to
>> pw_forum at pwscf.org
>>
>> To subscribe or unsubscribe via the World Wide Web, visit
>> http://www.democritos.it/mailman/listinfo/pw_forum
>> or, via email, send a message with subject or body 'help' to
>> pw_forum-request at pwscf.org
>>
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>>
>> When replying, please edit your Subject line so it is more specific
>> than "Re: Contents of Pw_forum digest..."
>>
>>
>> Today's Topics:
>>
>> 1. Re: problem with charge density with xcrysden
>> (Stefano de Gironcoli)
>> 2. [Fwd: Re: problem with charge density with xcrysden]
>> (Gabriele Sclauzero)
>> 3. Re: input file for isolated atom (Paolo Giannozzi)
>> 4. K Points and Band structures (Shaptrishi Sharma)
>> 5. Re: K Points and Band structures (Lorenzo Paulatto)
>> 6. Re: K Points and Band structures (Stefano de Gironcoli)
>> 7. Problem in spin polarisation (Shaptrishi Sharma)
>> 8. Re: Problem in spin polarisation (Stefano de Gironcoli)
>> 9. Re: Problem in spin polarisation (Duy Le)
>> 10. Re: Problem in spin polarisation (Stefano de Gironcoli)
>> 11. Re: Problem in spin polarisation (Paolo Giannozzi)
>> 12. The low usage of CUPs (wangqj1)
>>
>>
>> ----------------------------------------------------------------------
>>
>> Message: 1
>> Date: Fri, 11 Sep 2009 11:57:37 +0200
>> From: Stefano de Gironcoli <degironc at sissa.it>
>> Subject: Re: [Pw_forum] problem with charge density with xcrysden
>> To: PWSCF Forum <pw_forum at pwscf.org>
>> Message-ID: <4AAA1F11.3000805 at sissa.it>
>> Content-Type: text/plain; charset=ISO-8859-1; format=flowed
>>
>> dear Dev Sharma
>> the xsf file with the DATAGRID field IS NOT the output of pp.x!
>> Rather its name needs to be specified in variable fileout in the &plot
>> namelist of your density.in input
>> Please read the documentation of pp.x code for the meaning of the
>> other variables.
>> HTH
>>
>> Stefano de Gironcoli - SISSA and DEMOCRITOS
>>
>> dev sharma wrote:
>> > hi 2 all,
>> > I am trying to plot the charge density with the XCrysden, but when i
>> > am opening's XSF(file--> open structure--> open XSF(xcryden structure
>> > file)) file , generated by my calculations, it is showing the
>> > structure of my system. And i am not getting the option tools-->
>> > DATA GRID as ready. Please help or advice ?? Thankful to all of you.
>> > What i did is listed below.
>> > I run my input file with command
>> > /home/physics/espresso-4.0.2/bin/pp.x <density.inp> density.xsf
>> > and inputs of density.in <http://density.in> are
>> > &inputpp
>> > prefix = 'yvo'
>> > outdir = '/home/physics/work/yvo/temp/',
>> > filplot = 'yvocharge'
>> > plot_num= 0
>> > /
>> > &plot
>> > nfile = 1
>> > filepp(1) = 'yvocharge'
>> > weight(1) = 1.0
>> > iflag = 3
>> > output_format = 5,
>> > /
>> >
>> > with regards,
>> > Dev Sharma,
>> > University of Delhi,
>> > ------------------------------------------------------------------------
>> >
>> > _______________________________________________
>> > Pw_forum mailing list
>> > Pw_forum at pwscf.org
>> > http://www.democritos.it/mailman/listinfo/pw_forum
>> >
>>
>>
>>
>> ------------------------------
>>
>> Message: 2
>> Date: Fri, 11 Sep 2009 13:42:19 +0200
>> From: Gabriele Sclauzero <sclauzer at sissa.it>
>> Subject: [Pw_forum] [Fwd: Re: problem with charge density with
>> xcrysden]
>> To: PWscf Mailing List <pw_forum at pwscf.org>
>> Message-ID: <4AAA379B.4070804 at sissa.it>
>> Content-Type: text/plain; charset=iso-8859-1; format=flowed
>>
>> Forwarding e-mail from Emine. So I guess it may be a compatibility issue.
>>
>> GS
>>
>> -------- Original Message --------
>> Subject: Re: [Pw_forum] problem with charge density with xcrysden
>> Date: Fri, 11 Sep 2009 03:50:17 -0700 (PDT)
>> From: e kb <eminekb at yahoo.com>
>> To: sclauzer at sissa.it
>>
>>
>>
>>
>> The old version of xcrysden that i had didnt work with this line :
>> > DATAGRID_3D_UNKNOWN
>> but with this one:
>> > BEGIN_DATAGRID_3D_UNKNOWN
>>
>> I am not up to date on this but you can check it.
>> emine kucukbenli, SISSA, Italy
>>
>>
>>
>> --
>>
>>
>> o ------------------------------------------------ o
>> | Gabriele Sclauzero, PhD Student |
>> | c/o: SISSA & CNR-INFM Democritos, |
>> | via Beirut 2-4, 34014 Trieste (Italy) |
>> | email: sclauzer at sissa.it |
>> | phone: +39 040 3787 511 |
>> | skype: gurlonotturno |
>> o ------------------------------------------------ o
>>
>>
>> ------------------------------
>>
>> Message: 3
>> Date: Fri, 11 Sep 2009 13:44:13 +0200
>> From: Paolo Giannozzi <giannozz at democritos.it>
>> Subject: Re: [Pw_forum] input file for isolated atom
>> To: PWSCF Forum <pw_forum at pwscf.org>
>> Message-ID: <8F9E43BE-144C-4B5B-B984-327C99F59649 at democritos.it>
>> Content-Type: text/plain; charset=US-ASCII; format=flowed
>>
>>
>> On Sep 11, 2009, at 10:36 , Prasenjit Ghosh wrote:
>>
>> > (a) while doing calculations for any zero dimensions
>> > you should always set nosym =.true.
>>
>> for Gamma-point calculations it shouldn't make any
>> difference
>>
>> P.
>> ---
>> Paolo Giannozzi, Dept of Physics, University of Udine
>> via delle Scienze 208, 33100 Udine, Italy
>> Phone +39-0432-558216, fax +39-0432-558222
>>
>>
>>
>>
>>
>> ------------------------------
>>
>> Message: 4
>> Date: Fri, 11 Sep 2009 12:45:43 +0100
>> From: Shaptrishi Sharma <sh.shapt at gmail.com>
>> Subject: [Pw_forum] K Points and Band structures
>> To: pw_forum at pwscf.org
>> Message-ID:
>> <a8a0c4080909110445j1699c8d7hccc7aeb11d00be5b at mail.gmail.com>
>> Content-Type: text/plain; charset="iso-8859-1"
>>
>> Hi QEs users,
>>
>> Can anybody please help me in understanding what are the k points ?? I
>> have
>> read books a lot but its difficult to understand.
>>
>> And also how do we choose k points while performing a band structure
>> calculation in quantum espresso when we are having 330 atoms.
>>
>> Thanks
>>
>> S
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>> ------------------------------
>>
>> Message: 5
>> Date: Fri, 11 Sep 2009 13:58:19 +0200
>> From: "Lorenzo Paulatto" <paulatto at sissa.it>
>> Subject: Re: [Pw_forum] K Points and Band structures
>> To: "PWSCF Forum" <pw_forum at pwscf.org>
>> Message-ID: <op.uz3cvhgda8x26q at paulax>
>> Content-Type: text/plain; charset=utf-8; format=flowed; delsp=yes
>>
>> In data 11 settembre 2009 alle ore 13:45:43, Shaptrishi Sharma
>> <sh.shapt at gmail.com> ha scritto:
>>
>> > Can anybody please help me in understanding what are the k points ?? I
>> > have read books a lot but its difficult to understand.
>>
>> They are eigenvalues of the translation operator, T(R) where
>> R=n1*a1+n2*a2+n3*a3; a1,a2,a3 are the cell basis vectors and n1,n2,n3
>> integer numbers. The eigenvectors are, of course, the Bloch wavefunctions.
>>
>> Because the hamiltonian is periodic it commutes with the translation
>> operator, you can diagonalize both the hamiltonian and the translation
>> operator at the same time. As a consequence each Bloch wavefunction has a
>> well-defined energy (hamiltonian's eigenvalue) and k-point (translation
>> eigenvalue). Using both eigenvalues you can classify the states without
>> ambiguity, except where the bands cross.
>>
>> > And also how do we choose k points while performing a band structure
>> > calculation in quantum espresso when we are having 330 atoms.
>>
>> It does not depend on the number of atoms.
>>
>> You have to test the convergence at fixed smearing. E.g. you choose a
>> smearing that's small enough for you, than you increase the number of
>> k-points until total energy converges. You may then try again for a
>> smaller/larger smearing and see if the results are consistent.
>>
>> I would advise starting with a smaller system, it would take ages to do it
>> on 330 atoms. Keep in mind that the number of k-points needed for an
>> accurate sampling is directly proportional to the size of the Brillouin
>> zone, hence inversely proportional to the size of the cell.
>>
>> E.g. if you estimate that 6x6x6 k-points converge a certain calculation
>> than 3x3x3 k-points will be converge a 2x2x2 supercell to exactly the same
>> level.
>>
>> Best regards
>>
>>
>> --
>> Lorenzo Paulatto
>> SISSA & DEMOCRITOS (Trieste)
>> phone: +39 040 3787 511
>> skype: paulatz
>> www: http://people.sissa.it/~paulatto/<http://people.sissa.it/%7Epaulatto/>
>>
>> *** save italian brains ***
>> http://saveitalianbrains.wordpress.com/
>>
>>
>> ------------------------------
>>
>> Message: 6
>> Date: Fri, 11 Sep 2009 13:59:05 +0200
>> From: Stefano de Gironcoli <degironc at sissa.it>
>> Subject: Re: [Pw_forum] K Points and Band structures
>> To: PWSCF Forum <pw_forum at pwscf.org>
>> Message-ID: <4AAA3B89.9020002 at sissa.it>
>> Content-Type: text/plain; charset=ISO-8859-1; format=flowed
>>
>> Shaptrishi Sharma wrote:
>> > Hi QEs users,
>> >
>> > Can anybody please help me in understanding what are the k points ?? I
>> > have read books a lot but its difficult to understand.
>> Please ask to any solid state physicist nearby.
>>
>> > And also how do we choose k points while performing a band structure
>> > calculation in quantum espresso when we are having 330 atoms.
>> If you still have QE specific doubts after you have understood Bloch
>> theorem, Real and Reciprocal Space lattices, Brilloun Zone and the like
>> please formulate them again, trying to be specific.
>> > Thanks
>> > S
>> Please provide your affilaition.
>>
>> Best regards,
>>
>> Stefano de Gironcoli - SISSA and DEMOCRITOS
>>
>> > ------------------------------------------------------------------------
>> >
>> > _______________________________________________
>> > Pw_forum mailing list
>> > Pw_forum at pwscf.org
>> > http://www.democritos.it/mailman/listinfo/pw_forum
>> >
>>
>>
>>
>> ------------------------------
>>
>> Message: 7
>> Date: Fri, 11 Sep 2009 13:04:08 +0100
>> From: Shaptrishi Sharma <sh.shapt at gmail.com>
>> Subject: [Pw_forum] Problem in spin polarisation
>> To: pw_forum at pwscf.org
>> Message-ID:
>> <a8a0c4080909110504l4e812201wc964e7f71fc4a2e9 at mail.gmail.com>
>> Content-Type: text/plain; charset="iso-8859-1"
>>
>> Hi QE users,
>>
>> In one of my previous mail, I have asked about the spin polarisation in a
>> sytem having odd number of electrons , (I have 21 hydrogen atoms in my
>> system ).
>>
>> As suggested I used nelup =11 and neldw = 10, however, it is showing me
>> the
>> same error, as
>>
>> nelp out of range.
>> so what shall I do now??
>>
>> Thanks
>>
>> SS
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>>
>> ------------------------------
>>
>> Message: 8
>> Date: Fri, 11 Sep 2009 14:05:20 +0200
>> From: Stefano de Gironcoli <degironc at sissa.it>
>> Subject: Re: [Pw_forum] Problem in spin polarisation
>> To: PWSCF Forum <pw_forum at pwscf.org>
>> Message-ID: <4AAA3D00.6020106 at sissa.it>
>> Content-Type: text/plain; charset=ISO-8859-1; format=flowed
>>
>> what is your value for nbnd ?
>> stefano
>>
>> Shaptrishi Sharma wrote:
>> > Hi QE users,
>> >
>> > In one of my previous mail, I have asked about the spin polarisation
>> > in a sytem having odd number of electrons , (I have 21 hydrogen atoms
>> > in my system ).
>> >
>> > As suggested I used nelup =11 and neldw = 10, however, it is showing
>> > me the same error, as
>> >
>> > nelp out of range.
>> > so what shall I do now??
>> >
>> > Thanks
>> >
>> > SS
>> >
>> >
>> > ------------------------------------------------------------------------
>> >
>> > _______________________________________________
>> > Pw_forum mailing list
>> > Pw_forum at pwscf.org
>> > http://www.democritos.it/mailman/listinfo/pw_forum
>> >
>>
>>
>>
>> ------------------------------
>>
>> Message: 9
>> Date: Fri, 11 Sep 2009 08:16:52 -0400
>> From: Duy Le <ttduyle at gmail.com>
>> Subject: Re: [Pw_forum] Problem in spin polarisation
>> To: PWSCF Forum <pw_forum at pwscf.org>
>> Message-ID:
>> <8974d3b20909110516p4f2a7201y58e38d3a36a9d4a7 at mail.gmail.com>
>> Content-Type: text/plain; charset="iso-8859-1"
>>
>> Add nelec to input
>> Please just reply instead of creating a new email starting with "In one of
>> my previous mail" so that all your emails and communications are ordered
>> in
>> the same thread.
>>
>> :-)
>>
>> On Fri, Sep 11, 2009 at 8:05 AM, Stefano de Gironcoli <degironc at sissa.it
>> >wrote:
>>
>> > what is your value for nbnd ?
>> > stefano
>> >
>> > Shaptrishi Sharma wrote:
>> > > Hi QE users,
>> > >
>> > > In one of my previous mail, I have asked about the spin polarisation
>> > > in a sytem having odd number of electrons , (I have 21 hydrogen atoms
>> > > in my system ).
>> > >
>> > > As suggested I used nelup =11 and neldw = 10, however, it is showing
>> > > me the same error, as
>> > >
>> > > nelp out of range.
>> > > so what shall I do now??
>> > >
>> > > Thanks
>> > >
>> > > SS
>> > >
>> > >
>> > >
>> ------------------------------------------------------------------------
>> > >
>> > > _______________________________________________
>> > > Pw_forum mailing list
>> > > Pw_forum at pwscf.org
>> > > http://www.democritos.it/mailman/listinfo/pw_forum
>> > >
>> >
>> > _______________________________________________
>> > Pw_forum mailing list
>> > Pw_forum at pwscf.org
>> > http://www.democritos.it/mailman/listinfo/pw_forum
>> >
>>
>>
>>
>> --
>> --------------------------------------------------
>> Duy Le
>> PhD Student
>> Department of Physics
>> University of Central Florida.
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>> ------------------------------
>>
>> Message: 10
>> Date: Fri, 11 Sep 2009 14:24:18 +0200
>> From: Stefano de Gironcoli <degironc at sissa.it>
>> Subject: Re: [Pw_forum] Problem in spin polarisation
>> To: PWSCF Forum <pw_forum at pwscf.org>
>> Message-ID: <4AAA4172.7020306 at sissa.it>
>> Content-Type: text/plain; charset=ISO-8859-1; format=flowed
>>
>> I think that in this case you need to explicitly specify also the value
>> for nelec because a test that 0<=nelup< =nelec
>> is performed before the default for nelec is calculated.
>> It should be fixed but it is not so straightforward as the default value
>> is presently defined much later.
>> stefano
>>
>> Shaptrishi Sharma wrote:
>> > Hi QE users,
>> >
>> > In one of my previous mail, I have asked about the spin polarisation
>> > in a sytem having odd number of electrons , (I have 21 hydrogen atoms
>> > in my system ).
>> >
>> > As suggested I used nelup =11 and neldw = 10, however, it is showing
>> > me the same error, as
>> >
>> > nelp out of range.
>> > so what shall I do now??
>> >
>> > Thanks
>> >
>> > SS
>> >
>> >
>> > ------------------------------------------------------------------------
>> >
>> > _______________________________________________
>> > Pw_forum mailing list
>> > Pw_forum at pwscf.org
>> > http://www.democritos.it/mailman/listinfo/pw_forum
>> >
>>
>>
>>
>> ------------------------------
>>
>> Message: 11
>> Date: Fri, 11 Sep 2009 14:35:30 +0200
>> From: Paolo Giannozzi <giannozz at democritos.it>
>> Subject: Re: [Pw_forum] Problem in spin polarisation
>> To: PWSCF Forum <pw_forum at pwscf.org>
>> Message-ID: <6132C5CA-B5C3-413F-ACFD-E31C9269D719 at democritos.it>
>> Content-Type: text/plain; charset=US-ASCII; format=flowed
>>
>>
>> On Sep 11, 2009, at 14:24 , Stefano de Gironcoli wrote:
>>
>> > It should be fixed
>>
>> or even better, removed, since there are alternative
>> and simpler methods to specify occupancies
>>
>> P.
>> ---
>> Paolo Giannozzi, Dept of Physics, University of Udine
>> via delle Scienze 208, 33100 Udine, Italy
>> Phone +39-0432-558216, fax +39-0432-558222
>>
>>
>>
>>
>>
>> ------------------------------
>>
>> Message: 12
>> Date: Fri, 11 Sep 2009 20:29:34 +0800 (CST)
>> From: wangqj1 <wangqj1 at 126.com>
>> Subject: [Pw_forum] The low usage of CUPs
>> To: pw_forum <pw_forum at pwscf.org>
>> Message-ID:
>> <
>> 29861561.516411252672174463.JavaMail.coremail at bj126app106.126.com>
>> Content-Type: text/plain; charset="gbk"
>>
>> Dear pwscf users
>> I use 16 CPUs to run a job,but the usage of CPUs is very slow ,it as
>> like:
>>
>> Tasks: 179 total, 1 running, 178 sleeping, 0 stopped, 0 zombie
>> Cpu0 : 0.0%us, 4.8%sy, 0.0%ni,
>> 90.3%id, 0.3%wa, 0.0%hi, 4.5%si, 0.0%st
>> Cpu1 : 0.0%us, 1.0%sy, 0.0%ni,
>> 95.8%id, 3.3%wa, 0.0%hi, 0.0%si, 0.0%st
>>
>> Cpu2 : 0.0%us, 0.0%sy, 0.0%ni,100.0%id, 0.0%wa, 0.0%hi, 0.0%si, 0.0%st
>> Cpu3 : 0.7%us, 0.0%sy, 0.0%ni,
>> 99.0%id, 0.3%wa, 0.0%hi, 0.0%si, 0.0%st
>>
>> Cpu4 : 0.0%us, 0.0%sy, 0.0%ni,100.0%id, 0.0%wa, 0.0%hi, 0.0%si, 0.0%st
>> Cpu5 : 0.0%us, 0.3%sy, 0.0%ni,
>> 99.7%id, 0.0%wa, 0.0%hi, 0.0%si, 0.0%st
>>
>> Cpu6 : 0.0%us, 0.0%sy, 0.0%ni,100.0%id, 0.0%wa, 0.0%hi, 0.0%si, 0.0%st
>>
>> Cpu7 : 0.0%us, 0.0%sy, 0.0%ni,100.0%id, 0.0%wa, 0.0%hi, 0.0%si, 0.0%st
>> Mem: 8048812k total, 7995856k used, 52956k free, 283692k buffers
>> Swap: 4192956k total, 124k used, 4192832k free, 7492420k cached
>> PID USER PR NI VIRT RES SHR S %CPU %MEM TIME+ COMMAND
>> 4522 root 15 -5 0 0 0 S 5 0.0 17:59.16 nfsd
>> 2012 root 15 -5 0 0 0 S 1 0.0 6:29.01 kjournald
>> 4404 root 20 0 104m 17m 5044 S 0 0.2 55:07.93 X
>> 4519 root 15 -5 0 0 0 S 0 0.0 18:05.58 nfsd
>> 4521 root 15 -5 0 0 0 S 0 0.0 16:55.33 nfsd
>> 5023 gdm 20 0 235m 31m 11m S 0 0.4 13:39.99
>> gdm-simple-gree
>> 1 root 20 0 1064 408 348 S 0 0.0 0:02.90 init
>> 2 root 15 -5 0 0 0 S 0 0.0 0:00.02 kthreadd
>> 3 root RT -5 0 0 0 S 0 0.0 0:00.00 migration/0
>> 4 root 15 -5 0 0 0 S 0 0.0 0:00.22 ksoftirqd/0
>>
>> The ifort ,MKL,and mpi I used is :
>> INTFC=/opt/intel/Compiler/11.0/081
>> INTMKL=/opt/intel/mkl/10.1.1.019
>> /opt/mpich2/bin/mpd
>> My machine model is as following :
>> processor : 0
>> vendor_id : GenuineIntel
>> cpu family : 6
>> model : 23
>> model name : Intel(R) Xeon(R) CPU E5410 @ 2.33GHz
>> stepping : 10
>> cpu MHz : 2327.489
>> cache size : 6144 KB
>> physical id : 0
>> siblings : 4
>> core id : 0
>> cpu cores : 4
>> apicid : 0
>> initial apicid : 0
>> fpu : yes
>> fpu_exception : yes
>> cpuid level : 13
>> wp : yes
>> flags : fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca
>> cmov
>> pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm pbe syscall nx lm
>> constant
>> _tsc arch_perfmon pebs bts rep_good nopl pni monitor ds_cpl vmx est tm2
>> ssse3 cx
>> 16 xtpr dca sse4_1 lahf_lm
>> bogomips : 4654.97
>> ...............
>> The pwscf version is espresso-4.0.3 .
>>
>> So , I want to know why the usage is so slow ?
>> How can I solve this problem ? Anybody who meet the same problem ?
>> Your kind help will be appreciated !
>> Best regards
>> Q.J.Wang
>> XiangTan University
>>
>>
>>
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>> ------------------------------
>>
>> _______________________________________________
>> Pw_forum mailing list
>> Pw_forum at pwscf.org
>> http://www.democritos.it/mailman/listinfo/pw_forum
>>
>>
>> End of Pw_forum Digest, Vol 27, Issue 47
>> ****************************************
>>
>
> _______________________________________________
> Pw_forum mailing list
> Pw_forum at pwscf.org
> http://www.democritos.it/mailman/listinfo/pw_forum
>
>
> ---
> Stefano Baroni - SISSA & DEMOCRITOS National Simulation Center - Trieste
> http://stefano.baroni.me [+39] 040 3787 406 (tel) -528 (fax) /
> stefanobaroni (skype)
>
> La morale est une logique de l'action comme la logique est une morale de la
> pensée - Jean Piaget
>
> Please, if possible, don't send me MS Word or PowerPoint attachments
> Why? See: http://www.gnu.org/philosophy/no-word-attachments.html
>
>
>
>
>
>
>
>
> _______________________________________________
> Pw_forum mailing list
> Pw_forum at pwscf.org
> http://www.democritos.it/mailman/listinfo/pw_forum
>
>
--
--------------------------------------------------
Duy Le
PhD Student
Department of Physics
University of Central Florida.
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