May 2012 - mpi-forum - mailman3.cels.anl.gov

Re: [Mpi-forum] why (int)0x4c000101 ?
by Fab Tillier 27 May '12

27 May '12

To add to what Jeff said, think of MPI_Datatype as information about a buffer being passed in. Take for example MPI_Send, which takes as input a void* 'buf' parameter for the buffer to send. The datatype parameter to MPI_Send give the function information about the type pointed to by 'buf'. To that end, you want your MPI library to be able to quickly decode an input datatype so that it may get on with processing the actual buffer. Different MPI libraries do this differently, as Jeff highlighted with the comparison of MPICH vs. Open MPI. Cheers, -Fab Jeff Hammond wrote on Sun, 27 May 2012 at 08:51:27 > The values appear to be designed to be decoded quickly using e.g. > bitmasks. ï¿½Comparing a general character string to "char" is expensive > relative to a bitmask. Just write write a C code to that compares > strncmp/strcmp to |/& and you'll see this clearly. > > One will observe that information appears to be coded in those values. > You see that the third-to-last hex-digit indicates the number of bytes > in the type, with the exception of long double, which uses c=12 when > the type is actually 16 bytes. I don't know why this is, but it > doesn't really matter since there is only one built-in type of this > size. Inspecting the first- and second-to-list hex-digits indicates > that signed and unsigned types often (but not always) differ by only > one bit. > > I didn't write that code but it is clear that the author was concerned > about performance, not human readability, although the scheme is clearly > not random, so I suspect it is quite readable to the MPICH2 developers. > > You can look at OpenMPI for a different perspective on implementing > these types: > > #define OMPI_PREDEFINED_GLOBAL(type, global) ((type) ((void *) > &(global))) OMPI_DECLSPEC extern struct ompi_predefined_datatype_t > ompi_mpi_char; #define MPI_CHAR OMPI_PREDEFINED_GLOBAL(MPI_Datatype, > ompi_mpi_char) > > You'll have to look at the source if you want more information. I > know very little about the internal design of OpenMPI. > > Best, > > Jeff > > On Sun, May 27, 2012 at 9:42 AM, ï¿½ï¿½ï¿½ï¿½ ï¿½ï¿½ <dncdd(a)yahoo.com.cn> wrote: >> >> when I read mpich2-1.4.1 code, I saw code as follow: >> >> typedef int MPI_Datatype; >> #define MPI_CHARï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ ((MPI_Datatype)0x4c000101) >> #define MPI_SIGNED_CHARï¿½ï¿½ï¿½ ((MPI_Datatype)0x4c000118) >> #define MPI_UNSIGNED_CHARï¿½ ((MPI_Datatype)0x4c000102) >> #define MPI_BYTEï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ ((MPI_Datatype)0x4c00010d) >> #define MPI_WCHARï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ ((MPI_Datatype)0x4c00040e) >> #define MPI_SHORTï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ ((MPI_Datatype)0x4c000203) >> #define MPI_UNSIGNED_SHORT ((MPI_Datatype)0x4c000204) >> #define MPI_INTï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ ((MPI_Datatype)0x4c000405) >> #define MPI_UNSIGNEDï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ ((MPI_Datatype)0x4c000406) >> #define MPI_LONGï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ ((MPI_Datatype)0x4c000407) >> #define MPI_UNSIGNED_LONGï¿½ ((MPI_Datatype)0x4c000408) >> #define MPI_FLOATï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ ((MPI_Datatype)0x4c00040a) >> #define MPI_DOUBLEï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ ((MPI_Datatype)0x4c00080b) >> #define MPI_LONG_DOUBLEï¿½ï¿½ï¿½ ((MPI_Datatype)0x4c000c0c) >> #define MPI_LONG_LONG_INTï¿½ ((MPI_Datatype)0x4c000809) >> #define MPI_UNSIGNED_LONG_LONG ((MPI_Datatype)0x4c000819) >> #define MPI_LONG_LONGï¿½ï¿½ï¿½ï¿½ï¿½ MPI_LONG_LONG_INT >> >> Anyone can tell me what is the meaning of those hex values? and why >> does the author use them? why do they define "MPI_CHAR" as >> ((MPI_Datatype)0x4c000101) instead of "char"? thx >> >> _______________________________________________ >> mpi-forum mailing list >> mpi-forum(a)lists.mpi-forum.org >> http://lists.mpi-forum.org/mailman/listinfo.cgi/mpi-forum > > > >

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Re: [Mpi-forum] why (int)0x4c000101 ?
by Jeff Hammond 27 May '12

27 May '12

The values appear to be designed to be decoded quickly using e.g. bitmasks. ï¿½Comparing a general character string to "char" is expensive relative to a bitmask. Just write write a C code to that compares strncmp/strcmp to |/& and you'll see this clearly. One will observe that information appears to be coded in those values. You see that the third-to-last hex-digit indicates the number of bytes in the type, with the exception of long double, which uses c=12 when the type is actually 16 bytes. I don't know why this is, but it doesn't really matter since there is only one built-in type of this size. Inspecting the first- and second-to-list hex-digits indicates that signed and unsigned types often (but not always) differ by only one bit. I didn't write that code but it is clear that the author was concerned about performance, not human readability, although the scheme is clearly not random, so I suspect it is quite readable to the MPICH2 developers. You can look at OpenMPI for a different perspective on implementing these types: #define OMPI_PREDEFINED_GLOBAL(type, global) ((type) ((void *) &(global))) OMPI_DECLSPEC extern struct ompi_predefined_datatype_t ompi_mpi_char; #define MPI_CHAR OMPI_PREDEFINED_GLOBAL(MPI_Datatype, ompi_mpi_char) You'll have to look at the source if you want more information. I know very little about the internal design of OpenMPI. Best, Jeff On Sun, May 27, 2012 at 9:42 AM, ï¿½ï¿½ï¿½ï¿½ ï¿½ï¿½ <dncdd(a)yahoo.com.cn> wrote: > > when I read mpich2-1.4.1 code, I saw code as follow: > > typedef int MPI_Datatype; > #define MPI_CHARï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ ((MPI_Datatype)0x4c000101) > #define MPI_SIGNED_CHARï¿½ï¿½ï¿½ ((MPI_Datatype)0x4c000118) > #define MPI_UNSIGNED_CHARï¿½ ((MPI_Datatype)0x4c000102) > #define MPI_BYTEï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ ((MPI_Datatype)0x4c00010d) > #define MPI_WCHARï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ ((MPI_Datatype)0x4c00040e) > #define MPI_SHORTï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ ((MPI_Datatype)0x4c000203) > #define MPI_UNSIGNED_SHORT ((MPI_Datatype)0x4c000204) > #define MPI_INTï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ ((MPI_Datatype)0x4c000405) > #define MPI_UNSIGNEDï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ ((MPI_Datatype)0x4c000406) > #define MPI_LONGï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ ((MPI_Datatype)0x4c000407) > #define MPI_UNSIGNED_LONGï¿½ ((MPI_Datatype)0x4c000408) > #define MPI_FLOATï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ ((MPI_Datatype)0x4c00040a) > #define MPI_DOUBLEï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ ((MPI_Datatype)0x4c00080b) > #define MPI_LONG_DOUBLEï¿½ï¿½ï¿½ ((MPI_Datatype)0x4c000c0c) > #define MPI_LONG_LONG_INTï¿½ ((MPI_Datatype)0x4c000809) > #define MPI_UNSIGNED_LONG_LONG ((MPI_Datatype)0x4c000819) > #define MPI_LONG_LONGï¿½ï¿½ï¿½ï¿½ï¿½ MPI_LONG_LONG_INT > > Anyone can tell me what is the meaning of those hex values? and why does the author use them? > why do they define "MPI_CHAR" as ((MPI_Datatype)0x4c000101) instead of "char"? > thx > > _______________________________________________ > mpi-forum mailing list > mpi-forum(a)lists.mpi-forum.org > http://lists.mpi-forum.org/mailman/listinfo.cgi/mpi-forum -- Jeff Hammond Argonne Leadership Computing Facility University of Chicago Computation Institute jhammond(a)alcf.anl.gov / (630) 252-5381 http://www.linkedin.com/in/jeffhammond https://wiki.alcf.anl.gov/parts/index.php/User:Jhammond

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why (int)0x4c000101 ?
by ÄþÄþ ¶ 27 May '12

27 May '12

when I read mpich2-1.4.1 code, I saw code as follow: Code: 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 typedef int MPI_Datatype; #define MPI_CHAR ((MPI_Datatype)0x4c000101) #define MPI_SIGNED_CHAR ((MPI_Datatype)0x4c000118) #define MPI_UNSIGNED_CHAR ((MPI_Datatype)0x4c000102) #define MPI_BYTE ((MPI_Datatype)0x4c00010d) #define MPI_WCHAR ((MPI_Datatype)0x4c00040e) #define MPI_SHORT ((MPI_Datatype)0x4c000203) #define MPI_UNSIGNED_SHORT ((MPI_Datatype)0x4c000204) #define MPI_INT ((MPI_Datatype)0x4c000405) #define MPI_UNSIGNED ((MPI_Datatype)0x4c000406) #define MPI_LONG ((MPI_Datatype)0x4c000407) #define MPI_UNSIGNED_LONG ((MPI_Datatype)0x4c000408) #define MPI_FLOAT ((MPI_Datatype)0x4c00040a) #define MPI_DOUBLE ((MPI_Datatype)0x4c00080b) #define MPI_LONG_DOUBLE ((MPI_Datatype)0x4c000c0c) #define MPI_LONG_LONG_INT ((MPI_Datatype)0x4c000809) #define MPI_UNSIGNED_LONG_LONG ((MPI_Datatype)0x4c000819) #define MPI_LONG_LONG MPI_LONG_LONG_INT Anyone can tell me what is the meaning of those hex values? and why does the author use them? why do they define "MPI_CHAR" as ((MPI_Datatype)0x4c000101) instead of "char"? thx

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Re: [Mpi-forum] Updated MPI-3.0 overview ppt
by Rolf Rabenseifner 25 May '12

25 May '12

Corrected ppt. ----- Original Message ----- > From: "Rolf Rabenseifner" <rabenseifner(a)hlrs.de> > To: "Main MPI Forum mailing list" <mpi-forum(a)lists.mpi-forum.org> > Sent: Thursday, May 24, 2012 10:17:46 PM > Subject: [Mpi-forum] Updated MPI-3.0 overview ppt > Dear all, > > The updated MPI-3.0 overview ppt is attached. > > Open issues for MPI-3.0 that are not on the agenda: > - 1st vote for #324 > - Discussion of Errata ticket #198 > - Tickets #163 #222 #318 #320 > which may be done as small 1-vote-tickets in Chicago. > But they should be prepared. > > Best regards > Rolf > > > -- > Dr. Rolf Rabenseifner . . . . . . . . . .. email rabenseifner(a)hlrs.de > High Performance Computing Center (HLRS) . phone ++49(0)711/685-65530 > University of Stuttgart . . . . . . . . .. fax ++49(0)711 / 685-65832 > Head of Dpmt Parallel Computing . . . www.hlrs.de/people/rabenseifner > Nobelstr. 19, D-70550 Stuttgart, Germany . (Office: Allmandring 30) > > _______________________________________________ > mpi-forum mailing list > mpi-forum(a)lists.mpi-forum.org > http://lists.mpi-forum.org/mailman/listinfo.cgi/mpi-forum -- Dr. Rolf Rabenseifner . . . . . . . . . .. email rabenseifner(a)hlrs.de High Performance Computing Center (HLRS) . phone ++49(0)711/685-65530 University of Stuttgart . . . . . . . . .. fax ++49(0)711 / 685-65832 Head of Dpmt Parallel Computing . . . www.hlrs.de/people/rabenseifner Nobelstr. 19, D-70550 Stuttgart, Germany . (Office: Allmandring 30)

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Updated MPI-3.0 overview ppt
by Rolf Rabenseifner 24 May '12

24 May '12

Dear all, The updated MPI-3.0 overview ppt is attached. Open issues for MPI-3.0 that are not on the agenda: - 1st vote for #324 - Discussion of Errata ticket #198 - Tickets #163 #222 #318 #320 which may be done as small 1-vote-tickets in Chicago. But they should be prepared. Best regards Rolf -- Dr. Rolf Rabenseifner . . . . . . . . . .. email rabenseifner(a)hlrs.de High Performance Computing Center (HLRS) . phone ++49(0)711/685-65530 University of Stuttgart . . . . . . . . .. fax ++49(0)711 / 685-65832 Head of Dpmt Parallel Computing . . . www.hlrs.de/people/rabenseifner Nobelstr. 19, D-70550 Stuttgart, Germany . (Office: Allmandring 30)

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Re: [Mpi-forum] May meeting
by Anthony Skjellum 22 May '12

22 May '12

Jeff, Jeff, Rich, thanks for the responses. Regards, Tony PS generally speaking, I was looking for the preferred travel strategy, which seems Bus to Tsukuba :-) ----- Original Message ----- From: "Jeff Squyres" <jsquyres(a)cisco.com> To: "Main MPI Forum mailing list" <mpi-forum(a)lists.mpi-forum.org> Sent: Tuesday, May 22, 2012 9:08:17 AM Subject: Re: [Mpi-forum] May meeting The list of attendees -- as of yesterday -- is in subversion in the usual location (https://svn.mpi-forum.org/svn/mpi-forum-docs/trunk/meetings/2012-05-may) On May 22, 2012, at 7:30 AM, Richard Graham wrote: > Sorry, > Did not answer all the questions. I do not believe we will get confirmations, but I have been in contact with the organizer, and am sure that things are OK – I had to change my reservation a bit, and Kie simply took care of it, and let me know. She (as well as Tammy and Angie) have been paying a lot of attention to the hotel rooms to make sure all have rooms – I personally have contacted folks about this … > > What sort of general advice are you looking for ? > > As for attendee’s – there will be close to 30, with the majority being those that attend on a regular basis. Some new attendees, but I would say on the order of 8 or so – is this close enough ? > > Rich > > From: mpi-forum-bounces(a)lists.mpi-forum.org [mailto:[email protected]] On Behalf Of Anthony Skjellum > Sent: Tuesday, May 22, 2012 4:05 PM > To: Main MPI Forum mailing list > Subject: Re: [Mpi-forum] May meeting > > Rich, it would be great to have a little more advice for those of us going to the Japanese meeting for the first time. > > 1) General guidance of how to find the Tsukuba Train option once passing through customs at Narita > [pointers to Narita airport maps or other useful guides helpful] > > Once on the train, I think we've got it pretty clear to the hotel etc. > > 2) Any other general advice from our local hosts. > > 3) I asked Tammy about hotel confirmations after we registered with MPI. Can we get registration confirmations? > I can ask her again, but I am wondering if anyone else had gotten confirmation of their reservations. > > 4) Who all is going? > > Regards, > Tony > > > From: "Richard Graham" <richardg(a)mellanox.com> > To: mpi-forum(a)lists.mpi-forum.org > Sent: Wednesday, May 2, 2012 8:34:19 AM > Subject: [Mpi-forum] May meeting > > > I have posted the latest agenda. Please take a look at it. One org will be attending only for the votes, so I do not plan to move the votes scheduled for Wed. If this causes you trouble, please let me know by the end of this week at that latest. > > I have added two items: > - An initial discussion of MPI 3.0+ plans > - A discussion on the status of the 3.0 draft (hint…) > > Rich > > _______________________________________________ > mpi-forum mailing list > mpi-forum(a)lists.mpi-forum.org > http://lists.mpi-forum.org/mailman/listinfo.cgi/mpi-forum > > -- > Anthony Skjellum, PhD > Professor and Chair > Dept. of Computer and Information Sciences > Director, UAB Center for Information Assurance and Joint Forensics Research ("The Center") > University of Alabama at Birmingham > +1-(205)934-8657; FAX: +1- (205)934-5473 > > ___________________________________________ > CONFIDENTIALITY: This e-mail and any attachments are confidential and > may be privileged. If you are not a named recipient, please notify the > sender immediately and do not disclose the contents to another person, > use it for any purpose or store or copy the information in any medium. > > Please consider the environment before printing this e-mail > _______________________________________________ > mpi-forum mailing list > mpi-forum(a)lists.mpi-forum.org > http://lists.mpi-forum.org/mailman/listinfo.cgi/mpi-forum -- Jeff Squyres jsquyres(a)cisco.com For corporate legal information go to: http://www.cisco.com/web/about/doing_business/legal/cri/ _______________________________________________ mpi-forum mailing list mpi-forum(a)lists.mpi-forum.org http://lists.mpi-forum.org/mailman/listinfo.cgi/mpi-forum -- Anthony Skjellum, PhD Professor and Chair Dept. of Computer and Information Sciences Director, UAB Center for Information Assurance and Joint Forensics Research ("The Center") University of Alabama at Birmingham +1-(205)934-8657; FAX: +1- (205)934-5473 ___________________________________________ CONFIDENTIALITY: This e-mail and any attachments are confidential and may be privileged. If you are not a named recipient, please notify the sender immediately and do not disclose the contents to another person, use it for any purpose or store or copy the information in any medium. Please consider the environment before printing this e-mail

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Re: [Mpi-forum] May meeting
by Jeff Squyres 22 May '12

22 May '12

The list of attendees -- as of yesterday -- is in subversion in the usual location (https://svn.mpi-forum.org/svn/mpi-forum-docs/trunk/meetings/2012-05-may) On May 22, 2012, at 7:30 AM, Richard Graham wrote: > Sorry, > Did not answer all the questions. I do not believe we will get confirmations, but I have been in contact with the organizer, and am sure that things are OK ï¿½ I had to change my reservation a bit, and Kie simply took care of it, and let me know. She (as well as Tammy and Angie) have been paying a lot of attention to the hotel rooms to make sure all have rooms ï¿½ I personally have contacted folks about this ï¿½ > > What sort of general advice are you looking for ? > > As for attendeeï¿½s ï¿½ there will be close to 30, with the majority being those that attend on a regular basis. Some new attendees, but I would say on the order of 8 or so ï¿½ is this close enough ? > > Rich > > From: mpi-forum-bounces(a)lists.mpi-forum.org [mailto:[email protected]] On Behalf Of Anthony Skjellum > Sent: Tuesday, May 22, 2012 4:05 PM > To: Main MPI Forum mailing list > Subject: Re: [Mpi-forum] May meeting > > Rich, it would be great to have a little more advice for those of us going to the Japanese meeting for the first time. > > 1) General guidance of how to find the Tsukuba Train option once passing through customs at Narita > [pointers to Narita airport maps or other useful guides helpful] > > Once on the train, I think we've got it pretty clear to the hotel etc. > > 2) Any other general advice from our local hosts. > > 3) I asked Tammy about hotel confirmations after we registered with MPI. Can we get registration confirmations? > I can ask her again, but I am wondering if anyone else had gotten confirmation of their reservations. > > 4) Who all is going? > > Regards, > Tony > > > From: "Richard Graham" <richardg(a)mellanox.com> > To: mpi-forum(a)lists.mpi-forum.org > Sent: Wednesday, May 2, 2012 8:34:19 AM > Subject: [Mpi-forum] May meeting > > > I have posted the latest agenda. Please take a look at it. One org will be attending only for the votes, so I do not plan to move the votes scheduled for Wed. If this causes you trouble, please let me know by the end of this week at that latest. > > I have added two items: > - An initial discussion of MPI 3.0+ plans > - A discussion on the status of the 3.0 draft (hintï¿½) > > Rich > > _______________________________________________ > mpi-forum mailing list > mpi-forum(a)lists.mpi-forum.org > http://lists.mpi-forum.org/mailman/listinfo.cgi/mpi-forum > > -- > Anthony Skjellum, PhD > Professor and Chair > Dept. of Computer and Information Sciences > Director, UAB Center for Information Assurance and Joint Forensics Research ("The Center") > University of Alabama at Birmingham > +1-(205)934-8657; FAX: +1- (205)934-5473 > > ___________________________________________ > CONFIDENTIALITY: This e-mail and any attachments are confidential and > may be privileged. If you are not a named recipient, please notify the > sender immediately and do not disclose the contents to another person, > use it for any purpose or store or copy the information in any medium. > > Please consider the environment before printing this e-mail > _______________________________________________ > mpi-forum mailing list > mpi-forum(a)lists.mpi-forum.org > http://lists.mpi-forum.org/mailman/listinfo.cgi/mpi-forum -- Jeff Squyres jsquyres(a)cisco.com For corporate legal information go to: http://www.cisco.com/web/about/doing_business/legal/cri/

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Re: [Mpi-forum] May meeting
by Richard Graham 22 May '12

22 May '12

Sorry, Did not answer all the questions. I do not believe we will get confirmations, but I have been in contact with the organizer, and am sure that things are OK – I had to change my reservation a bit, and Kie simply took care of it, and let me know. She (as well as Tammy and Angie) have been paying a lot of attention to the hotel rooms to make sure all have rooms – I personally have contacted folks about this … What sort of general advice are you looking for ? As for attendee’s – there will be close to 30, with the majority being those that attend on a regular basis. Some new attendees, but I would say on the order of 8 or so – is this close enough ? Rich From: mpi-forum-bounces(a)lists.mpi-forum.org [mailto:[email protected]] On Behalf Of Anthony Skjellum Sent: Tuesday, May 22, 2012 4:05 PM To: Main MPI Forum mailing list Subject: Re: [Mpi-forum] May meeting Rich, it would be great to have a little more advice for those of us going to the Japanese meeting for the first time. 1) General guidance of how to find the Tsukuba Train option once passing through customs at Narita [pointers to Narita airport maps or other useful guides helpful] Once on the train, I think we've got it pretty clear to the hotel etc. 2) Any other general advice from our local hosts. 3) I asked Tammy about hotel confirmations after we registered with MPI. Can we get registration confirmations? I can ask her again, but I am wondering if anyone else had gotten confirmation of their reservations. 4) Who all is going? Regards, Tony ________________________________ From: "Richard Graham" <richardg(a)mellanox.com<mailto:[email protected]>> To: mpi-forum(a)lists.mpi-forum.org<mailto:[email protected]> Sent: Wednesday, May 2, 2012 8:34:19 AM Subject: [Mpi-forum] May meeting I have posted the latest agenda. Please take a look at it. One org will be attending only for the votes, so I do not plan to move the votes scheduled for Wed. If this causes you trouble, please let me know by the end of this week at that latest. I have added two items: - An initial discussion of MPI 3.0+ plans - A discussion on the status of the 3.0 draft (hint…) Rich _______________________________________________ mpi-forum mailing list mpi-forum(a)lists.mpi-forum.org<mailto:[email protected]> http://lists.mpi-forum.org/mailman/listinfo.cgi/mpi-forum -- Anthony Skjellum, PhD Professor and Chair Dept. of Computer and Information Sciences Director, UAB Center for Information Assurance and Joint Forensics Research ("The Center") University of Alabama at Birmingham +1-(205)934-8657; FAX: +1- (205)934-5473 ___________________________________________ CONFIDENTIALITY: This e-mail and any attachments are confidential and may be privileged. If you are not a named recipient, please notify the sender immediately and do not disclose the contents to another person, use it for any purpose or store or copy the information in any medium. Please consider the environment before printing this e-mail

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Re: [Mpi-forum] May meeting
by Jeff Hammond 22 May '12

22 May '12

Regarding (1), http://lmgtfy.com/?q=Narita+airport+maps :-) See also: http://www2.score.cs.tsukuba.ac.jp/how-to-access-to-score/how-to-come-to-ts… (aka http://lmgtfy.com/?q=Narita+airport+Tsukuba+Train) I hope no one takes offense at lmgtfy.com; I just find it more fun than sending direct links. Best, Jeff On Tue, May 22, 2012 at 8:03 AM, Anthony Skjellum <tony(a)cis.uab.edu> wrote: > Rich, it would be great to have a little more advice for those of us going > to the Japanese meeting for the first time. > > 1) General guidance of how to find the Tsukuba Train option once passing > through customs at Narita > [pointers to Narita airport maps or other useful guides helpful] > > Once on the train, I think we've got it pretty clear to the hotel etc. > > 2) Any other general advice from our local hosts. > > 3) I asked Tammy about hotel confirmations after we registered with MPI. > Can we get registration confirmations? > I can ask her again, but I am wondering if anyone else had gotten > confirmation of their reservations. > > 4) Who all is going? > > Regards, > Tony > > > ________________________________ > From: "Richard Graham" <richardg(a)mellanox.com> > To: mpi-forum(a)lists.mpi-forum.org > Sent: Wednesday, May 2, 2012 8:34:19 AM > Subject: [Mpi-forum] May meeting > > I have posted the latest agenda.ï¿½ Please take a look at it.ï¿½ One org will be > attending only for the votes, so I do not plan to move the votes scheduled > for Wed.ï¿½ If this causes you trouble, please let me know by the end of this > week at that latest. > > > > I have added two items: > > -ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ An initial discussion of MPI 3.0+ plans > > -ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ A discussion on the status of the 3.0 draft (hintï¿½) > > > > Rich > > > _______________________________________________ > mpi-forum mailing list > mpi-forum(a)lists.mpi-forum.org > http://lists.mpi-forum.org/mailman/listinfo.cgi/mpi-forum > > -- > Anthony Skjellum, PhD > Professor and Chair > Dept. of Computer and Information Sciences > Director, UAB Center for Information Assurance and Joint Forensics Research > ("The Center") > University of Alabama at Birmingham > +1-(205)934-8657; FAX: +1- (205)934-5473 > > ___________________________________________ > CONFIDENTIALITY: This e-mail and any attachments are confidential and > may be privileged. If you are not a named recipient, please notify the > sender immediately and do not disclose the contents to another person, > use it for any purpose or store or copy the information in any medium. > > Please consider the environment before printing this e-mail > > _______________________________________________ > mpi-forum mailing list > mpi-forum(a)lists.mpi-forum.org > http://lists.mpi-forum.org/mailman/listinfo.cgi/mpi-forum -- Jeff Hammond Argonne Leadership Computing Facility University of Chicago Computation Institute jhammond(a)alcf.anl.gov / (630) 252-5381 http://www.linkedin.com/in/jeffhammond https://wiki.alcf.anl.gov/parts/index.php/User:Jhammond

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Re: [Mpi-forum] May meeting
by Richard Graham 22 May '12

22 May '12

Have you looked at the logistics page ? There are directions from Narita to Tsukuba – either by bus (a bit faster) or by train. I have gone both ways, and it is very easy, even the first time – people are very helpful, signage is good, etc. Do you need more than this ? Thanks, Rich From: mpi-forum-bounces(a)lists.mpi-forum.org [mailto:[email protected]] On Behalf Of Anthony Skjellum Sent: Tuesday, May 22, 2012 4:05 PM To: Main MPI Forum mailing list Subject: Re: [Mpi-forum] May meeting Rich, it would be great to have a little more advice for those of us going to the Japanese meeting for the first time. 1) General guidance of how to find the Tsukuba Train option once passing through customs at Narita [pointers to Narita airport maps or other useful guides helpful] Once on the train, I think we've got it pretty clear to the hotel etc. 2) Any other general advice from our local hosts. 3) I asked Tammy about hotel confirmations after we registered with MPI. Can we get registration confirmations? I can ask her again, but I am wondering if anyone else had gotten confirmation of their reservations. 4) Who all is going? Regards, Tony ________________________________ From: "Richard Graham" <richardg(a)mellanox.com<mailto:[email protected]>> To: mpi-forum(a)lists.mpi-forum.org<mailto:[email protected]> Sent: Wednesday, May 2, 2012 8:34:19 AM Subject: [Mpi-forum] May meeting I have posted the latest agenda. Please take a look at it. One org will be attending only for the votes, so I do not plan to move the votes scheduled for Wed. If this causes you trouble, please let me know by the end of this week at that latest. I have added two items: - An initial discussion of MPI 3.0+ plans - A discussion on the status of the 3.0 draft (hint…) Rich _______________________________________________ mpi-forum mailing list mpi-forum(a)lists.mpi-forum.org<mailto:[email protected]> http://lists.mpi-forum.org/mailman/listinfo.cgi/mpi-forum -- Anthony Skjellum, PhD Professor and Chair Dept. of Computer and Information Sciences Director, UAB Center for Information Assurance and Joint Forensics Research ("The Center") University of Alabama at Birmingham +1-(205)934-8657; FAX: +1- (205)934-5473 ___________________________________________ CONFIDENTIALITY: This e-mail and any attachments are confidential and may be privileged. If you are not a named recipient, please notify the sender immediately and do not disclose the contents to another person, use it for any purpose or store or copy the information in any medium. Please consider the environment before printing this e-mail

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