Re: [Boost-users] "Re: Cannot build boost with MPI using Intel openMPI wrapper"

Subject: Re: [Boost-users] "Re: Cannot build boost with MPI using Intel openMPI wrapper"
From: Cook, Rich (cook47_at_[hidden])
Date: 2015-06-11 12:27:24

I have looked over the docs at http://www.boost.org/doc/libs/1_55_0/doc/html/mpi/getting_started.html#mpi.config

and I just don't really understand what the <find-shared-library> option does in this: 

using mpi : : <find-shared-library>lammpio <find-shared-library>lammpi++
              <find-shared-library>mpi <find-shared-library>lam <find-shared-library>dl ;

I don't understand how this maps into the instructions here:  http://www.boost.org/build/doc/html/bbv2/reference/tools.html




> Date: Wed, 10 Jun 2015 18:42:17 +0000
> From: "Cook, Rich" <cook47_at_[hidden]>
> To: "boost-users_at_[hidden]" <boost-users_at_[hidden]>
> Subject: Re: [Boost-users] Boost-users Digest, Vol 4163, Issue 2
> Message-ID: <4F5E3BDC-CDF6-442E-BB02-054510A61C61_at_[hidden]>
> Content-Type: text/plain; charset="utf-8"
> 
>> 
>> Hi, here is the output of those commands, modified to reflect the actual tool I told boost to use, which is mpiCC, not mpicxx.  What should I do with this output, and why does boost not accept it?  Thanks!
>> 
>> rcook_at_rzgpu2 (~ ): /usr/local/tools/openmpi-intel-debug-1.8.4/bin/mpicxx --showme:compile
>> -I/usr/local/tools/openmpi-intel-debug-1.8.4/include/openmpi/opal/mca/hwloc/hwloc191/hwloc/include -I/usr/local/tools/openmpi-intel-debug-1.8.4/include/openmpi/opal/mca/event/libevent2021/libevent -I/usr/local/tools/openmpi-intel-debug-1.8.4/include/openmpi/opal/mca/event/libevent2021/libevent/include -I/usr/local/tools/openmpi-intel-debug-1.8.4/include -I/usr/local/tools/openmpi-intel-debug-1.8.4/include/openmpi -pthread
>> 
>> rcook_at_rzgpu2 (~ ): /usr/local/tools/openmpi-intel-debug-1.8.4/bin/mpicxx --showme:link
>> -pthread -Wl,-rpath -Wl,/usr/local/tools/openmpi-intel-debug-1.8.4/lib -Wl,--enable-new-dtags -L/usr/local/tools/openmpi-intel-debug-1.8.4/lib -lmpi
>> 
>> 
>> 
>> Subject: Re: [Boost-users] Cannot build boost with MPI using Intel openMPI wrapper
>> From: Alain Miniussi (alain.miniussi_at_[hidden])
>> Date: 2015-06-10 10:07:41
>> 
>> *   Next message: Hadidi, Lars: "[Boost-users] Boost Random Numbers: Normal Distribution"<http://lists.boost.org/boost-users/2015/06/84409.php>
>> *   Previous message: Boris Sch??ling: "Re: [Boost-users] Cannot build boost with MPI using Intel openMPI wrapper"<http://lists.boost.org/boost-users/2015/06/84407.php>
>> *   In reply to: Boris Sch??ling: "Re: [Boost-users] Cannot build boost with MPI using Intel openMPI wrapper"<http://lists.boost.org/boost-users/2015/06/84407.php>
>> 
>> ________________________________
>> 
>> What is the result of:
>> $/usr/local/tools/openmpi-intel-debug-1.8.4/bin/mpicxx --showme:compile
>> $/usr/local/tools/openmpi-intel-debug-1.8.4/bin/mpicxx --showme:link
>> ?
>> 
>> 
>> On 10/06/2015 11:08, Boris Sch?ling wrote:
>>> On Wed, 10 Jun 2015 02:37:26 +0200, Cook, Rich <cook47_at_[hidden]> wrote:
>>> 
>>>> Hello, I'm seeing this in my build output. I'm hoping someone can
>>>> help me find out what the actual problem is. Thanks for any assistance.
>>>> 
>>>> ===============MPI Auto-configuration===============
>>>> MPI auto-detection failed: unknown wrapper compiler
>>>> /usr/local/tools/openmpi-intel-debug-1.8.4/bin/mpiCC
>>>> Please report this error to the Boost mailing list: http://www.boost.org
>

>>>> You will need to manually configure MPI support.
>>>> MPI launcher: mpirun -np
>>>> ====================================================
>>>> 
> 
> -- 
> ?Richard Cook   
> ? Lawrence Livermore National Laboratory
> Bldg-453 Rm-4024, Mail Stop L-557        
> 7000 East Avenue,  Livermore, CA, 94550, USA
> ? (office) [phone]    
> ? (fax) [phone]
> ---
> Information Management & Graphics Grp., Services & Development Div., Integrated Computing & Communications Dept.
> (opinions expressed herein are mine and not those of LLNL)
> 
> 
> 
> 
> ------------------------------
> 
> Message: 2
> Date: Wed, 10 Jun 2015 16:56:04 -0700
> From: Nicholas Yue <yue.nicholas_at_[hidden]>
> To: boost-users_at_[hidden]
> Subject: Re: [Boost-users] Modify an asio echo server so that it does
> 	not send message back to client
> Message-ID: <5578CE94.9000304_at_[hidden]>
> Content-Type: text/plain; charset=windows-1252; format=flowed
> 
> 
> 
> On 2015-06-09 5:14 PM, Gavin Lambert wrote:
>> 
>> You need to pass the bytes_transferred to process as well, so that it 
>> knows how much data was actually read and therefore how much of data_ 
>> is actually valid.  Don't forget that this may be less than max_length 
>> and may be different from what the client actually sent (ie. data sent 
>> in one chunk may be received in multiple chunks).
> Thanks Gavin.
> 
>     I now have a process() method with the bytes_transferred parameter.
> 
>     Newbie question, how do I know the last chunk has been sent, so 
> that I can now process the data (which will be binary) ?
> 
>     Is there some simple example which illustrate this I can refer to ?
> 
> Cheers
> Nicholas Yue
> 
> 
> 
> ------------------------------
> 
> Message: 3
> Date: Thu, 11 Jun 2015 12:16:06 +1200
> From: Gavin Lambert <gavinl_at_[hidden]>
> To: boost-users_at_[hidden]
> Subject: Re: [Boost-users] Modify an asio echo server so that it does
> 	not send message back to client
> Message-ID: <mlak07$9ns$1_at_[hidden]>
> Content-Type: text/plain; charset=windows-1252; format=flowed
> 
> On 11/06/2015 11:56, Nicholas Yue wrote:
>>     I now have a process() method with the bytes_transferred parameter.
>> 
>>     Newbie question, how do I know the last chunk has been sent, so
>> that I can now process the data (which will be binary) ?
>> 
>>     Is there some simple example which illustrate this I can refer to ?
> 
> There isn't any inherent way to know.  TCP is a stream protocol -- you 
> just receive a continuous stream of bytes with no demarcation of any kind.
> 
> You will need to define something at the application layer of the 
> protocol to decide when a logical unit is complete, typically either by 
> inserting some delimiter that you know can never occur mid-message or by 
> sending the length of the following data early on.
> 
> 
> Note that ASIO does provide some helper methods for these scenarios -- 
> instead of using async_read_some, which just returns data as it becomes 
> available, you can use asio::async_read (which you can tell to not 
> return until it has read a specific number of bytes) or 
> asio::async_read_until (read until a specific delimiter).  (It's tricky, 
> though not impossible, to do a combination of the two -- but it's 
> something you should avoid if you have a choice.)
> 
> So for a line-based protocol you could async_read_until a CRLF (or just 
> LF, depending on the other end), or for a binary protocol that sends a 
> 4-byte length followed by a payload you could async_read 4 bytes to get 
> the length, then async_read that many bytes to get the payload.
> 
> 
> 
> 
> ------------------------------
> 
> Message: 4
> Date: Wed, 10 Jun 2015 23:00:42 -0400
> From: Tim Song <t.canens.cpp_at_[hidden]>
> To: boost-users_at_[hidden]
> Subject: Re: [Boost-users] Boost Random Numbers: Normal Distribution
> Message-ID:
> 	<CAPQZVxs3YoUgkzmqCp=K=4DtjJ3x_ugbbiKm+uKE0q9rvBgSdw_at_[hidden]>
> Content-Type: text/plain; charset="utf-8"
> 
> On Wed, Jun 10, 2015 at 11:59 AM, Hadidi, Lars <
> lhadidi_at_[hidden]> wrote:
>> 
>> I'd like to know which method is employed here.
>> 
> Have you tried reading the implementation (
> http://www.boost.org/doc/libs/1_58_0/boost/random/normal_distribution.hpp)?
> 
> Hint: The first comment after the includes is
> 
> // tables for the ziggurat algorithm
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> ------------------------------
> 
> Message: 5
> Date: Thu, 11 Jun 2015 08:06:04 +0200
> From: Oswin Krause <Oswin.Krause_at_[hidden]>
> To: boost-users_at_[hidden]
> Subject: Re: [Boost-users] Boost Random Numbers: Normal Distribution
> Message-ID:
> 	<ea13f1e81a2759ab472963b5e8e07770_at_[hidden]>
> Content-Type: text/plain; charset=UTF-8; format=flowed
> 
> Recently, it changed to Ziggurat's method.
> 
> On 2015-06-10 17:59, Hadidi, Lars wrote:
>> Hello,
>> 
>> I tried to find out which method is used by the boost library to
>> transform random numbers from a random number engine to the Gaussian
>> Distribution.
>> 
>> There are the Box-Muller-Method, Marsaglia's Polar Method and
>> Ziggurat's algorithm out there, but i could not determine which of
>> those is actually used by
>> 
>> boost::normal_distribution<double>?
>> 
>> I'd like to know which method is employed here.
>> 
>> Thanks for reply in advance,
>> 
>> sincerely,
>> 
>> Lars
>> 
>> 
>> _______________________________________________
>> Boost-users mailing list
>> Boost-users_at_[hidden]
>> http://lists.boost.org/mailman/listinfo.cgi/boost-users

> 
> 
> 
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-- 
✐Richard Cook   
✇ Lawrence Livermore National Laboratory
Bldg-453 Rm-4024, Mail Stop L-557        
7000 East Avenue,  Livermore, CA, 94550, USA
☎ (office) [phone]    
☎ (fax) [phone]
---
Information Management & Graphics Grp., Services & Development Div., Integrated Computing & Communications Dept.
(opinions expressed herein are mine and not those of LLNL)