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Error in parallel processing, Solution stops in between iterations with error!

I have a project in which the boundary condition changes with time and calculation uses  an 8 processor machine, This is the error I typically encounter over a period of time in the solution monitor:

 

| Thermal Enclosure - Step 4518 |

+----------+-----------+----------+-----------+----------+---------------+

| CSOLVER | Minimum | Location | Maximum | Location | Average Convg|

+----------+-----------+----------+-----------+----------+---------------+

| T-Solid | 8.26E+01 | 261518| 8.29E+01 | 253784| 8.27E+01 OK |

+----------+-----------+----------+-----------+----------+---------------+

+-------------------------------------------------+

| Coupled thermal convergence | Heat balance

+-----------------+--------+--------------+-------+ ----------------------

| Criteria | Rate | |Change| | Msg | To fluid: 5.148e-003

+-----------------+--------+--------------+-------+ (5.148e-003)

| Heat Imbalance | 1.07 | 2.461e-006 | OK | To solid: 5.134e-003

| Max delta T | 1.00 | 1.526e-005 | OK | (5.134e-003)

+-----------------+--------+--------------+-------+

unable to read the cmd header on the pmi context, Error = -1

.

Error posting readv, An existing connection was forcibly closed by the remote host.(10054)

unable to read the cmd header on the pmi context, Error = -1

.

Error posting readv, An existing connection was forcibly closed by the remote host.(10054)

unable to read the cmd header on the pmi context, Error = -1

.

Error posting readv, An existing connection was forcibly closed by the remote host.(10054)

unable to read the cmd header on the pmi context, Error = -1

.

Error posting readv, An existing connection was forcibly closed by the remote host.(10054)

unable to read the cmd header on the pmi context, Error = -1

.

Error posting readv, An existing connection was forcibly closed by the remote host.(10054)

unable to read the cmd header on the pmi context, Error = -1

.

Error posting readv, An existing connection was forcibly closed by the remote host.(10054)

unable to read the cmd header on the pmi context, Error = -1

.

Error posting readv, An existing connection was forcibly closed by the remote host.(10054)

op_read error on parent context: Error = -1

 

unable to read the cmd header on the parent context, Error = -1

.

connection to my parent broken, aborting.

state machine failed.

op_read error on left context: Error = -1

 

unable to read the cmd header on the left context, Error = -1

.

Error posting readv, An existing connection was forcibly closed by the remote host.(10054)

 

 

Someone plz help me overcome this!