[mpich-discuss] Error while connecting to host

[jayesh at mcs.anl.gov]

Hi,
 Try also setting the PMI_DOMAIN value to the PMI_KVS value.
 If you just want to start your programs manually (launch processes manually) and still use SMPD as a PMI server I would recommend using the "-pmiserver" option of mpiexec (mpiexec -pmiserver 2 => Starts an instance of SMPD - the port/kvs/domain values are printed out - and you can launch your MPI processes with the provided PMI environment. I set PMI_SIZE, PMI_RANK, PMI_KVS, PMI_DOMAIN, PMI_PORT, PMI_ROOT_PORT, PMI_HOST, PMI_ROOT_HOST env).
 Let us know if it works for you.
Regards,
Jayesh

(PS: When connecting to the process manager the default values of the kvs won't work.)
----- Original Message -----
From: "Takahiro Someji" <Takahiro_Someji at hitachi-metals.co.jp>
To: jayesh at mcs.anl.gov, mpich-discuss at mcs.anl.gov
Sent: Wednesday, March 10, 2010 6:53:22 PM GMT -06:00 US/Canada Central
Subject: Re: [mpich-discuss] Error while connecting to host

Hello.

  I tried as your proposal. However, the result did not change.

  I tried a setup of PMI_ROOT_PORT=8676 as smpd default port number in 
Host window & Sub window.
  Then, the program was terminated for the fatal error.
  Is communication with smpd blocked? Or is this a unique phenomenon by 
japanese OS?

Regards,
Someji

(2010/03/11 0:08), jayesh at mcs.anl.gov wrote:
> Hi,
>   Try adding PMI_HOST (with value of PMI_ROOT_HOST) and PMI_PORT (with value of PMI_ROOT_PORT) into your PMI environment and see if it works. Make sure that you start the process with rank=0 before other processes.
>   Are you trying to debug your program (Another way to debug your code would be to attach to the MPI process using a debugger)?
>
> Regards,
> Jayesh
> ----- Original Message -----
> From: "染次　孝博"<Takahiro_Someji at hitachi-metals.co.jp>
> To: mpich-discuss at mcs.anl.gov
> Sent: Tuesday, March 9, 2010 11:51:40 PM GMT -06:00 US/Canada Central
> Subject: [mpich-discuss] Error while connecting to host
>
>
> Hi.
>
> I am developing the manual start program. (WindowsXP sp3, MPICH2-1.2.1p1, VisualStudio2008 sp1, C++)
> Program is very simple as below.
>
> ************************
> *int main(int argc, char* argv[])
> *{
> * int numprocs,myid,namelen,i;
> * char processor_name[256];
> *
> * MPI_Init(&argc,&argv);
> * MPI_Comm_size(MPI_COMM_WORLD,&numprocs);
> * MPI_Comm_rank(MPI_COMM_WORLD,&myid);
> * MPI_Get_processor_name(processor_name,&namelen);
> *
> * for (i=0 ; i<argc ; i++)
> * {
> * printf("arg%d:%s\n",i,argv[i]);
> * }
> * printf("numprocs:%d\n",numprocs);
> * printf("myid:%d\n",myid);
> * printf("processor name:%s\n",processor_name);
> *
> * MPI_Finalize();
> * return 0;
> *}
> ************************
>
> The result of the program with "mpiexec -n 2 program.exe" is below.
>
> *************************
> *arg0:D:\temp\MPITest1\Debug\mpitest1.exe
> *numprocs:2
> *myid:1
> *processor name:HOSTPC
> *arg0:D:\temp\MPITest1\Debug\mpitest1.exe
> *numprocs:2
> *myid:0
> *processor name:HOSTPC
> *************************
>
> Next, I tried to start of the two programs manually with one PC.
> As shown in the manual "Debugging jobs by starting them manually" , it set up as follows.
> In Host window:
> set PMI_ROOT_HOST=HOSTPC
> set PMI_RANK=0
> set PMI_ROOT_PORT=9222
> set PMI_ROOT_LOCAL=1
> set PMI_SIZE=2
> set PMI_KVS=mpich2
> In Sub window:
> set PMI_ROOT_HOST=HOSTPC
> set PMI_RANK=1
> :
> : same as Host
>
> Then , I started this program with cmd "program.exe" in Host window&  Sub window.
> As a result, the following errors occurred and it did not operate well.
>
> [01:3156]..ERROR:Error while connecting to host,
> Can not connected because refused target computer (10061)
> [01:3156]..ERROR:Connect on sock (host=000520p80812.ad.hitachi-metals.co.jp, por
> t=9222) failed, exhaused all end points
> SMPDU_Sock_post_connect failed.
> [0] PMI_ConnectToHost failed: unable to post a connect to 000520p80812.ad.hitach
> i-metals.co.jp:9222, error: Undefined dynamic error code
> uPMI_ConnectToHost returning PMI_FAIL
> [0] PMI_Init failed.
> Fatal error in MPI_Init: Other MPI error, error stack:
> MPIR_Init_thread(394): Initialization failed
> MPID_Init(103).......: channel initialization failed
> MPID_Init(374).......: PMI_Init returned -1
>
>
> Please let me know solution.
>
> -- Thank you.
>
> -----------------------------------------------
> Takahiro Someji , Senior Engineer
>
> Hitachi Metals Ltd. Production System Lab.
> 6010, Mikajiri
> Kumagaya city,Saitama pref. JAPAN
> zip: 360-0843
>
> phone: +81-485-31-1720
> fax: +81-485-33-3398
> eMail: takahiro_someji at hitachi-metals.co.jp
> web: http://www.hitachi-metals.co.jp
> -----------------------------------------------
>