Internal error: IDB-2003: Aggregation/Distinct memory limit is exceeded.

I`m using pentaho mondrian saiku (OLAP solution) and I can't not get results with multi dimensions set.

I get the error "Internal error: IDB-2003: Aggregation/Distinct memory limit is exceeded." I know that disk based agrregation is not supported yet then I tried do increase the memoryum and use swap (the swap memory now are about 100GB) as work arround.

I can see swap increasing but I still get that message. Any other variable should be edited?

Thanks
Emannuel