Bug in backdResults being reset before being retrieved.

Disable use of VecBitSet (since not needed on NUC)
Other minor optimisations.

Author: highperformancecoder

models/starComplexity.cc

@@ -352,8 +352,6 @@ void StarComplexityGen::fillStarMap(unsigned numStars)
           (compute,[block=&*block](){
             block->result.swap(block->backedResult);
           });
-        backedResultsReset=syclQ().parallel_for
-          (blockSize,resultSwapped,[block=&*block](auto i){block->backedResult[i].reset();});
 
         // accumulate starMap results on separate host thread
         starMapPopulated=syclQ().submit([&](auto& handler) {
@@ -376,6 +374,9 @@ void StarComplexityGen::fillStarMap(unsigned numStars)
           });
         });
 
+        backedResultsReset=syclQ().parallel_for
+           (blockSize,starMapPopulated,[block=&*block](auto i){block->backedResult[i].reset();});
+
         Event::wait({resultSwapped,backedResultsReset});
         resultBufferConsumed=0;
       };

models/starComplexity.h

@@ -71,11 +71,7 @@ class linkRepImpl
       if (data[i]) return false;
     return true;
   }
-  bool operator==(const linkRepImpl& x) const {
-    for (unsigned i=0; i<size; ++i)
-      if (data[i]!=x.data[i]) return false;
-    return true;
-  }
+  bool operator==(const linkRepImpl& x) const {return operator<=>(x)==0;}
   auto operator<=>(const linkRepImpl& x) const {
     for (unsigned i=0; i<size; ++i)
       if (auto r=data[i]<=>x.data[i]; r!=0)
@@ -88,16 +84,16 @@ class linkRepImpl
     return std::vector<unsigned>(start,end);
   }
   void dataFromVector(const std::vector<unsigned>& x) {
-    memcpy(data,x.data(),std::min(size_t(size),x.size())*sizeof(Impl));
+    memcpy(data,x.data(),std::min(size_t(size)*sizeof(Impl),x.size()*sizeof(x[0])));
   }
 };
 
-#ifdef SYCL_LANGUAGE_VERSION
-using linkRep=linkRepImpl<VecBitSet<unsigned,4>>;
-#else
+//#ifdef SYCL_LANGUAGE_VERSION
+//using linkRep=linkRepImpl<VecBitSet<unsigned,4>>;
+//#else
 // on NUC, unsigned works best (32 bits)
 using linkRep=linkRepImpl<unsigned>;
-#endif
+//#endif
 
 // Convert to/from a JSON array for Python conversion
 #define CLASSDESC_json_pack___linkRep

models/starComplexity.py

@@ -3,7 +3,7 @@
 
 from starComplexity import starC
 from datetime import datetime
-nodes=10
+nodes=22
 # computed from max_{l\in[0,L]}min(n+L-l,2l) where L=n(n-1)/2
 maxStars=0
 L=int(0.5*nodes*(nodes-1))