> > Torus-2QoS fails to configure fabric with more than 16 HCAs. > > This patch extends PORTGRP_MAX_PORTS to be 34. Maximal practical > ports > > per switch - 2 reserved ports (minimal of needed ports for switch to > > switch connections in 2D Torus). > > > > Signed-off-by: Alex Netes <[email protected]> > > --- > > opensm/osm_torus.c | 2 +- > > 1 files changed, 1 insertions(+), 1 deletions(-) > > > > diff --git a/opensm/osm_torus.c b/opensm/osm_torus.c index > > 330f55d..b01f69f 100644 > > --- a/opensm/osm_torus.c > > +++ b/opensm/osm_torus.c > > @@ -59,7 +59,7 @@ > > #include <opensm/osm_opensm.h> > > > > #define TORUS_MAX_DIM 3 > > -#define PORTGRP_MAX_PORTS 16 > > +#define PORTGRP_MAX_PORTS 34 > > #define SWITCH_MAX_PORTGRPS (1 + 2 * TORUS_MAX_DIM) #define > > DEFAULT_MAX_CHANGES 32 > > > > There is portgroup_max_ports configuration parameter for torus to change > this if needed. > > man torus-2QoS.conf states: > portgroup_max_ports max_ports > This keyword specifies the maximum number of parallel inter- > switch links, and also the maximum number of host ports per > switch, that torus-2QoS can accommodate. The default value is > 16. Torus-2QoS will log an error message during topology dis- > covery if this parameter needs to be increased. If this keyword > appears multiple times, the last instance prevails. > > Note that the switch management port (switch port 0) gets put > into the same port group with the host ports, so if you have 16 > host ports per switch, portgroup_max_ports would need to be at > least 17. > > Is there really a need to change the default for this ?
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