Re: [OMPI devel] Configuring openmpi-1.3.2 with "--without-rte-support". FLAG.

Mon, 11 May 2009 11:12:22 -0400 

Hello,
Thanks for your quick response. I am working on LINUX Cluster, so probably has SLURM installed. 


I am studying to minimise the time to start-up of OMPI on a  
homogeneous system - like a bunch of embedded devices or even on large  
number of similar cores - like Bluegene(they say it takes 30 min for  
OMPI to start on it!!!). I am grad student and am trying to study the  
ways OMPI can be enhanced for such systems. I thought the  
initialization process involving the discovery of resources,  
allocation and forming the registery and then HNP must be taking all  
that time. I don't have a large number of homogeneous systems at my  
dispense, so was just trying with my small cluster of Linux boxes.


If you can direct me to the right direction it will be really greatful.

Thanks and Regards,
Maninder Singh.

Quoting Ralph Castain <[email protected]>:


That configure option does work, but you appear to be on a system that
has SLURM installed - yes? Are you planning on running with SLURM?

Building --without-rte-support will remove a lot more than just the
allocator and mapper. You have to be on a system like a Cray that has
its own launch, mapping, and MPI wireup support. Unfortunately,         SLURM
doesn't meet all those requirements.

If you are trying to improve startup time, then you are probably
chasing the wrong areas. The allocation and mapping functions are only
loaded by mpirun, not any application process or daemon, and those
functions typically take only milliseconds to execute.

What problem are you trying to solve? We have a lot of capability for
improved launch times built into 1.3.2, and even more in the OMPI
development trunk that will be in future releases. Depending upon the
precise problem you are trying to resolve, we can perhaps point you to
a better solution.

Ralph

On May 11, 2009, at 12:18 AM, [email protected] wrote:


Hello All,


I am trying to build openmpi-1.3.2 with "--without-rte-support". I   
am getting bunch of

errors. Is this support fully functioning or not?


I was trying to reduce the time OMPI takes to load on a homogenous   
system by removing the
Resource Discovery/Allocation/mapping stuff by giving all these as   
static inputs but then

I saw this FLAG and tried to build using it.

Can anybody with knowledge on this direct me?

Thanks and Regards,
Maninder.


PS : Sorry, I sent this same mail to users group also, if that is   
not permissible please let me know.


errors :
-------------------------------------------------------------------------

ess_slurm_module.c:63: error: ?orte_ess_base_app_abort? undeclared   
here (not in a

function)
ess_slurm_module.c: In function ?rte_init?:

ess_slurm_module.c:82: error: ?orte_jmap_t? undeclared (first use   
in this function)
ess_slurm_module.c:82: error: (Each undeclared identifier is   
reported only once

ess_slurm_module.c:82: error: for each function it appears in.)
ess_slurm_module.c:82: error: ?jmap? undeclared (first use in this function)
ess_slurm_module.c:126: error: expected expression before ?)? token
ess_slurm_module.c: In function ?rte_finalize?:

ess_slurm_module.c:152: error: ?orte_nid_t? undeclared (first use   
in this function)
ess_slurm_module.c:152: error: ?nids? undeclared (first use in this  
 function)
ess_slurm_module.c:153: error: ?orte_jmap_t? undeclared (first use   
in this function)
ess_slurm_module.c:153: error: ?jmaps? undeclared (first use in   
this function)

ess_slurm_module.c:170: error: expected expression before ?)? token
ess_slurm_module.c:175: error: expected expression before ?)? token
ess_slurm_module.c: In function ?proc_is_local?:

ess_slurm_module.c:192: error: ?orte_nid_t? undeclared (first use   
in this function)

ess_slurm_module.c:192: error: ?nid? undeclared (first use in this function)
ess_slurm_module.c: In function ?proc_get_hostname?:

ess_slurm_module.c:218: error: ?orte_nid_t? undeclared (first use   
in this function)

ess_slurm_module.c:218: error: ?nid? undeclared (first use in this function)
ess_slurm_module.c: In function ?proc_get_arch?:

ess_slurm_module.c:236: error: ?orte_nid_t? undeclared (first use   
in this function)

ess_slurm_module.c:236: error: ?nid? undeclared (first use in this function)
ess_slurm_module.c: In function ?update_arch?:

ess_slurm_module.c:254: error: ?orte_nid_t? undeclared (first use   
in this function)

ess_slurm_module.c:254: error: ?nid? undeclared (first use in this function)
ess_slurm_module.c: In function ?proc_get_local_rank?:

ess_slurm_module.c:274: error: ?orte_pmap_t? undeclared (first use   
in this function)
ess_slurm_module.c:274: error: ?pmap? undeclared (first use in this  
 function)

ess_slurm_module.c: In function ?proc_get_node_rank?:

ess_slurm_module.c:292: error: ?orte_pmap_t? undeclared (first use   
in this function)
ess_slurm_module.c:292: error: ?pmap? undeclared (first use in this  
 function)

make[2]: *** [ess_slurm_module.lo] Error 1
make[2]: Leaving directory
`/home/NotRoot/Documents/DES/OMPI/openmpi-1.3.2/orte/mca/ess/slurm'
make[1]: *** [all-recursive] Error 1

make[1]: Leaving directory   
`/home/NotRoot/Documents/DES/OMPI/openmpi-1.3.2/orte'

make: *** [all-recursive] Error 1
-------------------------------------------------------------------------


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