Hi,
I tracked this down a bit, and my impression is that this piece of code in
coll_tuned_component.c
if (ompi_coll_tuned_use_dynamic_rules) {
mca_base_param_reg_string(&mca_coll_tuned_component.super.collm_version,
"dynamic_rules_filename",
"Filename of configuration file that contains
the dynamic (@runtime) decision function rules",
false, false,
ompi_coll_tuned_dynamic_rules_filename,
&ompi_coll_tuned_dynamic_rules_filename);
if( ompi_coll_tuned_dynamic_rules_filename ) {
OPAL_OUTPUT((ompi_coll_tuned_stream,"coll:tuned:component_open
Reading collective rules file [%s]",
ompi_coll_tuned_dynamic_rules_filename));
rc = ompi_coll_tuned_read_rules_config_file(
ompi_coll_tuned_dynamic_rules_filename,
&(mca_coll_tuned_component.all_base_rules), COLLCOUNT);
if( rc >= 0 ) {
OPAL_OUTPUT((ompi_coll_tuned_stream,"coll:tuned:module_open
Read %d valid rules\n", rc));
} else {
OPAL_OUTPUT((ompi_coll_tuned_stream,"coll:tuned:module_open
Reading collective rules file failed\n"));
mca_coll_tuned_component.all_base_rules = NULL;
}
}
....
}
Does not initialize the msg_rules as ompi_coll_tuned_read_rules_config_file
does it by calling
ompi_coll_tuned_mk_msg_rules in the case that
ompi_coll_tuned_use_dynamic_rules is TRUE
and
ompi_coll_tuned_dynamic_rules_filename is FALSE
which leads to a crash in line
if( (NULL == base_com_rule) || (0 == base_com_rule->n_msg_sizes))
in coll_tuned_dynamic_rules.c:361
as base_com_rule seems to unitialized, but NOT zero, and points somewhere...
That is probably not inteneded, as it prohibits the selection of an algorithm
by switch like -mca coll_tuned_alltoall_algorithm 2.
Hope that helps fixing it...
--
Holger Berger
System Integration and Support
HPCE Division NEC Deutschland GmbH
Tel: +49-711-6877035 [email protected]
Fax: +49-711-6877145 http://www.nec.com/de
NEC Deutschland GmbH, Hansaallee 101, 40549 Düsseldorf
Geschäftsführer Yuya Momose
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