Invalid communicator

[sauravshuvo]

Dear Sir/Madam,
I am getting this error.


taskid: 1 hostname: saurav-Inspiron-5559
module_io_quilt_old.F 2931 F
Quilting with 1 groups of 0 I/O tasks.
Ntasks in X 1 , ntasks in Y 2
*************************************
Configuring physics suite 'conus'

mp_physics: 3* 3*
cu_physics: 0* 0*
ra_lw_physics: 1* 1*
ra_sw_physics: 1* 1*
bl_pbl_physics: 1* 1*
sf_sfclay_physics: 1* 1*
sf_surface_physics: 4* 4*

(* = option overrides suite setting)
*************************************
WRF V4.0.1 MODEL
*************************************
Parent domain
ids,ide,jds,jde 1 42 1 42
ims,ime,jms,jme -4 47 15 47
ips,ipe,jps,jpe 1 42 22 42
*************************************
DYNAMICS OPTION: Eulerian Mass Coordinate
alloc_space_field: domain 1 , 31266620 bytes allocated
med_initialdata_input: calling input_input
Input data is acceptable to use:
Max map factor in domain 1 = 1.00. Scale the dt in the model accordingly.
INPUT LandUse = "USGS"
LANDUSE TYPE = "USGS" FOUND 33 CATEGORIES 2 SEASONS WATER CATEGORY = 16 SNOW CATEGORY = 24
SOIL TEXTURE CLASSIFICATION = STAS FOUND 19 CATEGORIES
*************************************
Nesting domain
ids,ide,jds,jde 1 52 1 31
ims,ime,jms,jme -4 57 6 36
ips,ipe,jps,jpe 1 52 16 31
INTERMEDIATE domain
ids,ide,jds,jde 11 33 15 30
ims,ime,jms,jme 6 38 12 35
ips,ipe,jps,jpe 9 35 22 32
*************************************
d01 2013-09-09_18:00:00 alloc_space_field: domain 2 , 4298976 bytes allocated
d01 2013-09-09_18:00:00 alloc_space_field: domain 2 , 34897588 bytes allocated
d01 2013-09-09_18:00:00 *** Initializing nest domain # 2 from an input file. ***
d01 2013-09-09_18:00:00 med_initialdata_input: calling input_input
d01 2013-09-09_18:00:00 Input data is acceptable to use:
INPUT LandUse = "USGS"
LANDUSE TYPE = "USGS" FOUND 33 CATEGORIES 2 SEASONS WATER CATEGORY = 16 SNOW CATEGORY = 24
SOIL TEXTURE CLASSIFICATION = STAS FOUND 19 CATEGORIES
INPUT LandUse = "USGS"
LANDUSE TYPE = "USGS" FOUND 33 CATEGORIES 2 SEASONS WATER CATEGORY = 16 SNOW CATEGORY = 24
SOIL TEXTURE CLASSIFICATION = STAS FOUND 19 CATEGORIES
Max map factor in domain 1 = 1.00. Scale the dt in the model accordingly.
INPUT LandUse = "USGS"
LANDUSE TYPE = "USGS" FOUND 33 CATEGORIES 2 SEASONS WATER CATEGORY = 16 SNOW CATEGORY = 24
SOIL TEXTURE CLASSIFICATION = STAS FOUND 19 CATEGORIES
mediation_integrate.G 1943 DATASET=HISTORY
mediation_integrate.G 1944 grid%id 1 grid%oid 1
d01 2013-09-09_18:00:00 Input data is acceptable to use:
Tile Strategy is not specified. Assuming 1D-Y
WRF TILE 1 IS 1 IE 42 JS 22 JE 42
WRF NUMBER OF TILES = 1
mediation_integrate.G 1943 DATASET=HISTORY
mediation_integrate.G 1944 grid%id 2 grid%oid 2
Tile Strategy is not specified. Assuming 1D-Y
WRF TILE 1 IS 1 IE 52 JS 16 JE 31
WRF NUMBER OF TILES = 1
Fatal error in PMPI_Bcast: Invalid communicator, error stack:
PMPI_Bcast(1600): MPI_Bcast(buf=0x2fa6dc0, count=1, MPI_INTEGER, root=0, comm=0xffffffff) failed
PMPI_Bcast(1541): Invalid communicator


I haven't seen this type of errors ever.
Please help me in this regard.
Sincerely -
Saurav

 

[Ming Chen]

Please send me your namelist.input to take look.
By the way, did this error occur at the right beginning of the model run?
How did you compile the code?

 

[sauravshuvo]

Dear Sir,
Thank you for the reply.
I have this error only at 'wrf.exe', everything before that ran fine.
I have added the namelist file for you to see.
I used GFORTRAN and GCC for compilation.
Sincerely -
Saurav

 

[Ming Chen]

I am not 100% sure whether this is the reason for the model crashing. Just for the purpose to narrow down the problem,
(1) please turn off the quilting option , i.e., please set
nio_tasks_per_group = 0,
nio_groups = 1,

(2) please set
start_year = 2018,
start_month = 10,
start_day = 21,
start_hour = 18,
start_minute = 00, 00, 00, 00, 00, 00,
start_second = 00, 00, 00, 00, 00, 00,
end_year = 2018,
end_month = 10,
end_day = 22,
end_hour = 00,

Then try again.

 

[meteoadriatic]

Hello,

PMPI_Bcast(1541): Invalid communicator error might be caused by incomplete network configuration. Take a look at your /etc/hosts file, you might miss a line like:

<ipaddress> <hostname.domain> <hostname>

If I remmeber correctly, ommiting that could cause PMPI_Bcast error.
Ivan

 

[sauravshuvo]

Hello,
Sorry for replying late. We hade some issues with the internet services here, so I was out of evrything since last week.
Anyways, I will try both of them.
Thank you for the support.
Sincerely -
Saurav Dey Shuvo