/home/kcamus/qaas_runs/169-443-9681/intel/AMG/build/AMG/AMG/seq_mv/csr_matop.c: 222 - 231
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222: 	for (ia = A_i[ic]; ia < A_i[ic+1]; ia++)
223: 	{
224: 	   ja = A_j[ia];
225: 	   for (ib = B_i[ja]; ib < B_i[ja+1]; ib++)
226: 	   {
227: 	      jb = B_j[ib];
228: 	      if (B_marker[jb] != ic)
229: 	      {
230: 	 	 B_marker[jb] = ic;
231: 		 num_nonzeros++;
