Definition at line 196 of file PxDistribution.h. References _logCPUs, _myCPU, and _nrCPUs. Referenced by PxBcastArraySBT(), PxBcastValueSBT(), PxGatherArraySBT(), PxReduceValueToRootSBT(), and PxScatterArraySBT(). 00197 { 00198 /*** Determine ordering of CPUs in Spanning Binomial Tree ***/ 00199 00200 if (root >= _nrCPUs) { 00201 return; 00202 } 00203 *myIndex = 0; 00204 order[0] = root; 00205 int rootTmp = root; 00206 int index = orderLength / 2; 00207 00208 for (int i=0; i<_logCPUs; i++) { 00209 if (rootTmp < index) { 00210 for (int j=0; j<index; j++) { 00211 int cpu = index+j + root-rootTmp; 00212 if (cpu == _myCPU) { 00213 *myIndex = index+j; 00214 } 00215 order[index+j] = cpu; 00216 } 00217 } else { 00218 for (int j=0; j<index; j++) { 00219 int cpu = j + root-rootTmp; 00220 if (cpu == _myCPU) { 00221 *myIndex = index+j; 00222 } 00223 order[index+j] = cpu; 00224 } 00225 rootTmp -= index; 00226 } 00227 index /= 2; 00228 } 00229 }
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1.5.1