Dear Nick, after that I call: CALL MPI_Sendrecv(P_SEND,nptSend,MPI_PARTICLE_TYPE,BCPU,201,&
P_RECV,nptSend,MPI_PARTICLE_TYPE,TCPU,201,& MPI_COMM_WORLD,MPI_STATUS_IGNORE,MPI%iErr) but I have the following error [diedroLap:16824] *** An error occurred in MPI_Sendrecv [diedroLap:16824] *** reported by process [139856324001793,139852725092354] [diedroLap:16824] *** on communicator MPI_COMM_WORLD [diedroLap:16824] *** MPI_ERR_TYPE: invalid datatype [diedroLap:16824] *** MPI_ERRORS_ARE_FATAL (processes in this communicator will now abort, [diedroLap:16824] *** and potentially your MPI job) Do you know something about this errors? Thanks again Diego On 3 October 2014 15:29, Nick Papior Andersen <nickpap...@gmail.com> wrote: > Yes, I guess this is correct. Testing is easy! Try testing! > As I stated, I do not know enough about the custom type in MPI, this was > my hunch feeling... > > 2014-10-03 13:23 GMT+00:00 Diego Avesani <diego.aves...@gmail.com>: > >> Dear Nick, >> thanks again. >> After reading your post I have thought to compile as >> >> mpif90 -r8 *.f90 >> > > >> and to have this type variable >> >> TYPE tParticle >> SEQUENCE >> INTEGER :: ip >> INTEGER :: fake >> REAL :: RP(2) >> REAL :: QQ(4) >> END TYPE tParticle >> >> where I use fake to have 4 + 4 bytes, and then I have >> TYPES(1)=MPI_INTEGER >> TYPES(2)=MPI_DOUBLE_PRECISION >> TYPES(3)=MPI_DOUBLE_PRECISION >> nBLOCKS(1)=2 >> nBLOCKS(2)=2 >> nBLOCKS(3)=4 >> >> Am I wrong? Do I have correctly understood? >> > > Really Really thanks >> >> >> Diego >> >> >> On 3 October 2014 15:10, Nick Papior Andersen <nickpap...@gmail.com> >> wrote: >> >>> >>> >>> 2014-10-03 13:00 GMT+00:00 Diego Avesani <diego.aves...@gmail.com>: >>> >>>> Dear all, dear Nick, >>>> thanks lot. >>>> I have understood something, so I have create this variable type: >>>> >>>> TYPE tParticle >>>> SEQUENCE >>>> INTEGER :: ip >>>> INTEGER :: fake >>>> REAL :: RP(2) >>>> REAL :: QQ(4) >>>> END TYPE tParticle >>>> >>> But did it work? :) Remember to tell mpi about the padding (add one more >>> type). >>> Also, for cosmetic reasons I would do this: >>> TYPE tParticle >>> sequence >>> integer :: ip >>> real :: rp(2), qq(4) >>> ! THIS IS A PADDING VARIABLE (SHOULD NEVER BE USED) >>> integer :: pad >>> end type >>> >>>> >>>> In the point number 2, do you mean to insert some align options? >>>> >>> Search around for your compiler. However, this will be "forcing" your >>> program to certain compilers, I would not recommend this (unless you have >>> specific reasons anyway). >>> >>>> >>>> For the point number 3, I do not understand where where I am wrong. >>>> This is my code >>>> >>>> >>>> TYPES(1)=MPI_INTEGER >>>> >>> Here it is wrong. >>> If you compile with -i8 your integer is not an integer, but a long. Your >>> displacements should be correct, but not your designation of the data-type >>> for mpi. >>> >>>> >>>> TYPES(2)=MPI_DOUBLE_PRECISION >>>> TYPES(3)=MPI_DOUBLE_PRECISION >>>> nBLOCKS(1)=2 >>>> nBLOCKS(2)=2 >>>> nBLOCKS(3)=4 >>>> >>>> DISPLACEMENTS(1)=0 >>>> DISPLACEMENTS(2)=sizeof(dummy%ip)+sizeof(dummy%fake) >>>> >>>> >>>> DISPLACEMENTS(3)=sizeof(dummy%ip)+sizeof(dummy%fake)+sizeof(dummy%RP(1))+sizeof(dummy%RP(2)) >>>> >>>> CALL >>>> MPI_TYPE_CREATE_STRUCT(3,nBLOCKS,DISPLACEMENTS,TYPES,MPI_PARTICLE_TYPE,MPI%ierr) >>>> >>>> This is how I compile >>>> >>>> mpif90 -r8 *.f90 >>>> >>> No, that was not what you said! >>> You said you compiled it using: >>> mpif90 -r8 -i8 *.f90 >>> >>> >>>> Again, really really Thanks >>>> >>>> Diego >>>> >>>> >>>> On 3 October 2014 14:30, Nick Papior Andersen <nickpap...@gmail.com> >>>> wrote: >>>> >>>>> I would never compile a fortran program relying on a specific compiler >>>>> option! I would never use r8/i8! >>>>> I would highly encourage you to explicitly set the precision of each >>>>> variable if you need specific variable precision. There are plenty of >>>>> tutorials around for this (selected_real/int_kind). >>>>> >>>>> Secondly, the warning of mis-alignment is due to the data type not >>>>> being a multiple of 8. You can pad it with additional bytes to reach a >>>>> multiple of 8 (in this case add a fake integer, or character(len=4)). >>>>> I do not know if sequence is needed for the mpi data type (I guess it >>>>> is needed when dealing with arrays of types, but again, I am not fully >>>>> sure >>>>> about this...). >>>>> >>>>> A couple of options: >>>>> 1) I think sequence should work if you pad it to align with 8 bytes. >>>>> 2) add code that is directive specified against the compiler to tell >>>>> the exact alignment of the data type >>>>> 3) Your compilation of -r8 -i8 does probably not work due to the >>>>> integer being long, and hence your data type of MPI_INTEGER (you did not >>>>> tell us whether you corrected this) >>>>> >>>>> >>>>> >>>>> >>>>> 2014-10-03 11:07 GMT+00:00 Diego Avesani <diego.aves...@gmail.com>: >>>>> >>>>>> Dears, >>>>>> First of all. Really really thanks for you help, I am learning a lot. >>>>>> Second: >>>>>> I try to study the MPI_TYPE_CREATE_STRUCT and all the things look >>>>>> correct. >>>>>> >>>>>> I use Intel Fortran compiler and when I compile with -r8 means that I >>>>>> am compiling in double precision. >>>>>> >>>>>> About Nick suggestion: >>>>>> Coding >>>>>> >>>>>> TYPE tParticle >>>>>> SEQUENCE >>>>>> INTEGER :: ip >>>>>> REAL :: RP(2) >>>>>> REAL :: QQ(4) >>>>>> END TYPE tParticle >>>>>> >>>>>> >>>>>> if I compile with >>>>>> mpif90 -r8 *.f90 >>>>>> >>>>>> I get the following error: >>>>>> warning #6379: The structure contains one or more misaligned fields. >>>>>> [TPARTICLE] TYPE tParticle >>>>>> >>>>>> >>>>>> I can only compile as: >>>>>> mpif90 -r8 -i8 *.f90 >>>>>> >>>>>> But I get the same error: >>>>>> >>>>>> An error occurred in MPI_Cart_create >>>>>> [diedroLap:12267] *** reported by process >>>>>> [139817172008961,139814070386689] >>>>>> [diedroLap:12267] *** on communicator MPI_COMM_WORLD >>>>>> [diedroLap:12267] *** MPI_ERR_OTHER: known error not in list >>>>>> [diedroLap:12267] *** MPI_ERRORS_ARE_FATAL (processes in this >>>>>> communicator will now abort, >>>>>> [diedroLap:12267] *** and potentially your MPI job) >>>>>> >>>>>> >>>>>> >>>>>> What I can do? >>>>>> Thanks a lot >>>>>> >>>>>> >>>>>> >>>>>> On 3 October 2014 08:15, Nick Papior Andersen <nickpap...@gmail.com> >>>>>> wrote: >>>>>> >>>>>>> sequence >>>>>> >>>>>> >>>>>> >>>>>> >>>>>> Diego >>>>>> >>>>>> >>>>>> _______________________________________________ >>>>>> users mailing list >>>>>> us...@open-mpi.org >>>>>> Subscription: http://www.open-mpi.org/mailman/listinfo.cgi/users >>>>>> Link to this post: >>>>>> http://www.open-mpi.org/community/lists/users/2014/10/25434.php >>>>>> >>>>> >>>>> >>>>> >>>>> -- >>>>> Kind regards Nick >>>>> >>>>> _______________________________________________ >>>>> users mailing list >>>>> us...@open-mpi.org >>>>> Subscription: http://www.open-mpi.org/mailman/listinfo.cgi/users >>>>> Link to this post: >>>>> http://www.open-mpi.org/community/lists/users/2014/10/25435.php >>>>> >>>> >>>> >>>> _______________________________________________ >>>> users mailing list >>>> us...@open-mpi.org >>>> Subscription: http://www.open-mpi.org/mailman/listinfo.cgi/users >>>> Link to this post: >>>> http://www.open-mpi.org/community/lists/users/2014/10/25436.php >>>> >>> >>> >>> >>> -- >>> Kind regards Nick >>> >>> _______________________________________________ >>> users mailing list >>> us...@open-mpi.org >>> Subscription: http://www.open-mpi.org/mailman/listinfo.cgi/users >>> Link to this post: >>> http://www.open-mpi.org/community/lists/users/2014/10/25437.php >>> >> >> >> _______________________________________________ >> users mailing list >> us...@open-mpi.org >> Subscription: http://www.open-mpi.org/mailman/listinfo.cgi/users >> Link to this post: >> http://www.open-mpi.org/community/lists/users/2014/10/25438.php >> > > > > -- > Kind regards Nick > > _______________________________________________ > users mailing list > us...@open-mpi.org > Subscription: http://www.open-mpi.org/mailman/listinfo.cgi/users > Link to this post: > http://www.open-mpi.org/community/lists/users/2014/10/25439.php >
