[mpich-discuss] Error while connecting to host

Jayesh Krishna jayesh at mcs.anl.gov
Mon Mar 15 10:27:22 CDT 2010 

Hi,
 Glad to know it is working for you now. Let us know if you need any further help.

Regards,
Jayesh
----- Original Message -----
From: "Takahiro Someji" <Takahiro_Someji at hitachi-metals.co.jp>
To: mpich-discuss at mcs.anl.gov
Cc: jayesh at mcs.anl.gov
Sent: Monday, March 15, 2010 4:11:25 AM GMT -06:00 US/Canada Central
Subject: Re: [mpich-discuss] Error while connecting to host

Hi.
I am sorry very much.
It seems that my simple mistake is a cause. I was setting instead of 
setting as PMI_ROOT_LOCAL=1 as PMI_LOCAL=1. I did not notice though you 
had advised before.

Thanks.
Someji

(4:59), Takahiro Someji wrote:
> Hi.
> Thank you very much for your work.
> I also checked again. Then, it operated normally as you told. I do not 
> understand the cause.
> Because the difference of the setting of PC might be a cause, I have 
> been tested until now using two sets of PCs (setting is different).
> Moreover, I am confirming the same phenomenon at rev1.0.7. Are the 
> domain setting of PC (workgroup or ActiveDirectory) and the setting 
> such as LAN Manager related?
> I want to investigate the cause of not operating normally.
>
> Regards,
> Someji
>
> (2010/03/13 0:35), jayesh at mcs.anl.gov wrote:
>> Hi,
>> With 1.3a1 (and 1.2.1p1) you should also be able to start MPI 
>> processes as described in the "Debugging jobs by starting them 
>> manually" section of the developer's guide. I verified that the setup 
>> works (on 1.2.1p1& should work on 1.3 series too) on my local 
>> machine. Please follow the steps below to start MPI processes 
>> manually on the local machine,
>>
>> 1) Open two command prompts, command_prompt_1& command_prompt_2
>> 2) On command_prompt_1 please set the PMI environment as follows,
>>
>> set PMI_ROOT_HOST
>> set PMI_ROOT_PORT�22
>> set PMI_RANK=
>> set PMI_SIZE=2
>> set PMI_KVS=mich2
>> set PMI_ROOT_LOCAL=
>>
>> 3) On command_prompt_2 please set the PMI environment as follows,
>>
>> set PMI_ROOT_HOST
>> set PMI_ROOT_PORT�22
>> set PMI_RANK=
>> set PMI_SIZE=2
>> set PMI_KVS=mich2
>> set PMI_ROOT_LOCAL=
>>
>> 4) Run your MPI process (by typing the executable name at the command 
>> prompt - don't use mpiexec to launch your program) on the 
>> command_prompt_1 . (Note: The process with PMI_RANK=should be run 
>> before other ranks)
>>
>> 5) Run your MPI process on command_prompt_2
>>
>> Let us know if it works.
>>
>> (PS: The environment variable PMI_RANK determines the rank of the 
>> current MPI process and the var PMI_SIZE determines the total number 
>> of MPI processes in the job)
>> Regards,
>> Jayesh
>>
>>
>> ----- Original Message -----
>> From: "Takahiro Someji"<Takahiro_Someji at hitachi-metals.co.jp>
>> To: "Jayesh Krishna"<jayesh at mcs.anl.gov>
>> Cc: mpich-discuss at mcs.anl.gov
>> Sent: Friday, March 12, 2010 2:42:39 AM GMT -06:00 US/Canada Central
>> Subject: Re: [mpich-discuss] Error while connecting to host
>>
>> Hi.
>> When rev1.3a1 was installed, it worked well. (At rev1.0.3, when
>> setting up as the manual, it operated normally.)
>>
>> However, there is a problem by this method.
>> It is a problem that a port number and a domain name, kvs name change
>> whenever it starts a PMI server.
>> It is troublesome to start a PMI server, and to set up these
>> parameters again at every time.
>> Are there better methods.
>>
>>> Let us know if it works. Meanwhile, why do you want to start your 
>>> MPI processes manually ?
>> I am developing image-processing system using MPI.
>> In order to obtain high performance, I adopted the distributed
>> processing by multi PCs and MPI.
>> The program is developed by many men. And the contents of the program
>> differ for every PC (different progarams are operated on each PCs).
>> Therefore, everybody debug individually at the time of debugging.
>> Finally, it is necessary to build as one application.
>> At the time of execution, it starts at once from a host. However, I
>> want to start separately at the time of debugging and to perform MPI
>> communication.
>> If there is a better idea, please let me know.
>>
>> Regards,
>> Someji
>>
>> (2010/03/12 13:48), Jayesh Krishna wrote:
>>> Hi,
>>> You are very close. When specifying the environment for MPI 
>>> processes using SMPD as the process manager you should not specify 
>>> the PMI_LOCAL environment variable.
>>> Try the following steps to start MPI processes manually,
>>>
>>> 1) Run "mpiexec -pmiserver 2" on the command prompt. The command 
>>> would output the host, port and kvs information in the order.
>>>
>>> >D:\temp>mpiexec -pmiserver 2
>>> >000520P80812.ad.hitachi-metals.co.jp (set PMI_HOST& PMI_ROOT_HOST 
>>> to this hostname)
>>> >2612 (set PMI_PORT& PMI_ROOT_PORT to this port number)
>>> >65B8416A-4669-436b-A342-9FD0FF3357F9 (set PMI_KVS& PMI_DOMAIN to 
>>> this hostname)
>>>
>>> 2) Now open two command prompts - command_prompt_1& command_prompt_2
>>>
>>> 3) On command_prompt_1 set the PMI environment as follows,
>>> >set PMI_ROOT_HOST
>>> >set PMI_HOST
>>> >set PMI_ROOT_PORT&12
>>> >set PMI_PORT&12
>>> >set PMI_RANK=
>>> >set PMI_SIZE=2
>>> >set PMI_KVSeB8416A-4669-436b-A342-9FD0FF3357F9
>>> >set PMI_DOMAINeB8416A-4669-436b-A342-9FD0FF3357F9
>>>
>>> 4) On command_prompt_2 set the PMI environment as follows,
>>> >set PMI_ROOT_HOST
>>> >set PMI_HOST
>>> >set PMI_ROOT_PORT&12
>>> >set PMI_PORT&12
>>> >set PMI_RANK=
>>> >set PMI_SIZE=2
>>> >set PMI_KVSeB8416A-4669-436b-A342-9FD0FF3357F9
>>> >set PMI_DOMAINeB8416A-4669-436b-A342-9FD0FF3357F9
>>>
>>> 5) Now run the MPI program (by typing the name of the executable at 
>>> the command prompt) on command_prompt_1 and command_prompt_2
>>>
>>> If the above steps don't work please try the preview release of 
>>> MPICH2 (1.3a1 - there has been several bug fixes added after the 
>>> 1.2.1p1 release) and see if it works.
>>> Let us know if it works. Meanwhile, why do you want to start your 
>>> MPI processes manually ?
>>>
>>> Regards,
>>> Jayesh
>>>
>>> ----- Original Message -----
>>> From: "Takahiro Someji"<Takahiro_Someji at hitachi-metals.co.jp>
>>> To: jayesh at mcs.anl.gov
>>> Cc: mpich-discuss at mcs.anl.gov
>>> Sent: Thursday, March 11, 2010 10:30:39 PM GMT -06:00 US/Canada Central
>>> Subject: Re: [mpich-discuss] Error while connecting to host
>>>
>>> Hello.
>>> Sorry, I was not able to understand your explanation completely. Since
>>> I do not know well about the PMI, please teach me more closely.
>>> If there is another method of launch processes manually without using
>>> PMI, please let me know.
>>>
>>> Well, I tried.
>>>
>>> I operated as shown below in one command window.
>>> >D:\temp>mpiexec -pmiserver 2
>>> >000520P80812.ad.hitachi-metals.co.jp
>>> >2612
>>> >65B8416A-4669-436b-A342-9FD0FF3357F9
>>>
>>> Next, in anther two window (Host& Sub Window), I set up PMI
>>> environment, as shown below.
>>> >set PMI_ROOT_HOST
>>> >set PMI_HOST
>>> >set PMI_ROOT_PORT&12
>>> >set PMI_PORT&12
>>> >set PMI_LOCAL=
>>> >set PMI_RANK=%
>>> >set PMI_SIZE=
>>> >set PMI_KVSeB8416A-4669-436b-A342-9FD0FF3357F9
>>> >set PMI_DOMAINeB8416A-4669-436b-A342-9FD0FF3357F9
>>>
>>> Next , I started the program with cmd "program.exe" in Host window& Sub
>>> window.
>>> Then, the program was terminated for the fatal error (access 
>>> violation).
>>> (Is this a fundamental problem?)
>>>
>>> Next, I set PMI_ROOT_PORT and PMI_PORT to 9222.
>>> Then, the result is "ERROR:Error while connecting to host......".
>>>
>>> What is bad?.
>>>
>>> Regars,
>>> Someji
>>>
>>>
>>> (2010/03/12 1:05), jayesh at mcs.anl.gov wrote:
>>>
>>>> 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�76 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=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=; 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=STPC
>>>>> set PMI_RANK=
>>>>> set PMI_ROOT_PORT�22
>>>>> set PMI_ROOT_LOCAL=
>>>>> set PMI_SIZE=2
>>>>> set PMI_KVS=mich2
>>>>> In Sub window:
>>>>> set PMI_ROOT_HOST=STPC
>>>>> set PMI_RANK=
>>>>> :
>>>>> : 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
>>>>> t�22) 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
>>>>> -----------------------------------------------
>>>>>
>>>
>>
>
>
>

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