Error in loading graph : my_first_app tutorial

[SKK]

Hi 

I am running the basic GraphLab tutorial for Page Rank Vertex Program on the docs.graphlab.org website. I get the following error when I run it using the command (mpiexec -n 4 ./my_first_app): 

My graph.txt looks like this:

1 a.com 4 10

4 b.org 20

10 c.edu 11 1

11 d.gov 10

Any suggestions ?

WARNING:  distributed_graph.hpp(load_from_stream:3229): Error parsing line 0 in ./graph.txt:

        "1 a.com 4 10"

FATAL:    distributed_graph.hpp(load_from_posixfs:2203):

        Error parsing file: ./graph.txt

[tweety:13049] *** Process received signal ***

[tweety:13049] Signal: Aborted (6)

[tweety:13049] Signal code:  (-6)

[tweety:13049] [ 0] /lib/x86_64-linux-gnu/libpthread.so.0(+0xfcb0) [0x7fc97df5ecb0]

[tweety:13049] [ 1] /lib/x86_64-linux-gnu/libc.so.6(gsignal+0x35) [0x7fc97bcf7425]

[tweety:13049] [ 2] /lib/x86_64-linux-gnu/libc.so.6(abort+0x17b) [0x7fc97bcfab8b]

[tweety:13049] [ 3] ./my_first_app() [0x490140]

[tweety:13049] [ 4] ./my_first_app() [0x498658]

[tweety:13049] [ 5] ./my_first_app(_ZN8graphlab17distributed_graphI8web_pageNS_5emptyEE17load_from_posixfsESsN5boost8functionIFbRS3_RKSsS8_EEE+0x190) [0x4f3600]

[tweety:13049] [ 6] ./my_first_app(_ZN8graphlab17distributed_graphI8web_pageNS_5emptyEE4loadESsN5boost8functionIFbRS3_RKSsS8_EEE+0xf7) [0x4f38f7]

[tweety:13049] [ 7] ./my_first_app(main+0x6fe) [0x48c28e]

[tweety:13049] [ 8] /lib/x86_64-linux-gnu/libc.so.6(__libc_start_main+0xed) [0x7fc97bce276d]

[tweety:13049] [ 9] ./my_first_app() [0x48dfad]

[tweety:13049] *** End of error message ***

--------------------------------------------------------------------------

mpiexec noticed that process rank 0 with PID 13049 on node indxrci01hd02 exited on signal 6 (Aborted).