[MPICH2-dev] problem with multithreaded version of sock mpich2-1.06 under Windows

[Ryzhykh, Alexey]

Hi everybody,

We faced the problems with using multithreaded version of mpich2-1.06
built with ch3: sock channel under Windows IA32.

May be the same problems exists on other Intel platforms under Windows -
Intel 64 and IA64. I was able to build working Win mpich2-1.06 only for
IA32.

The simple MT tests like mpich2/threaded_sr works fine but under stress
testing we see the problems.  

I used the special version of IMB that support running several threads
for our stress testing.

And I got intermittent failures running 8 processes on 4 nodes with 8
threads.

Sometimes the test finishes successfully, sometimes it hangs and
sometimes the following error appears:

 

 

job aborted:

rank: node: exit code[: error message]

0: svsmpiw03: 1

1: svsmpiw03: 1: Fatal error in MPI_Recv: Other MPI error, error stack:

MPI_Recv(186).............................: MPI_Recv(buf=03BC0040,
count=262144

 MPI_BYTE, src=2, tag=MPI_ANY_TAG, comm=0x84000007, status=01B4FE78)
failed

MPIDI_CH3i_Progress_wait(215).............: an error occurred while
handling an

event returned by MPIDU_Sock_Wait()

MPIDI_CH3I_Progress_handle_sock_event(420):

MPIDU_Sock_wait(2602).....................: The specified network name
is no lo

ger available. (errno 64)

2: svsmpiw04: 1: Fatal error in MPI_Waitall: Other MPI error, error
stack:

MPI_Waitall(258)..........................: MPI_Waitall(count=2,
req_array=01B4

E68, status_array=01B4FE78) failed

MPIDI_CH3i_Progress_wait(215).............: an error occurred while
handling an

event returned by MPIDU_Sock_Wait()

MPIDI_CH3I_Progress_handle_sock_event(420):

MPIDU_Sock_wait(2464).....................: Unable to re-post an aborted
readv

peration

MPIDU_Sock_post_readv(1655)...............: An existing connection was
forcibly

closed by the remote host. (errno 10054)

3: svsmpiw04: 1: Fatal error in MPI_Recv: Other MPI error, error stack:

MPI_Recv(186).............................: MPI_Recv(buf=03BC0040,
count=262144

 MPI_BYTE, src=2, tag=MPI_ANY_TAG, comm=0x84000005, status=01B4FE78)
failed

MPIDI_CH3i_Progress_wait(215).............: an error occurred while
handling an

event returned by MPIDU_Sock_Wait()

MPIDI_CH3I_Progress_handle_sock_event(420):

MPIDU_Sock_wait(2602).....................: The specified network name
is no lo

ger available. (errno 64)

 

 

Could you please help to solve the problem?

I can provide you with this MT IMB in separate email.  I can't reproduce
the problem on small test cases.

 

With best regards,

Alexey Ryzhykh,

---

Intel, Sarov

 

 

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