diff --git a/src/cpu/VirtualFluidsCore/CoProcessors/MPIIOMigrationCoProcessor.cpp b/src/cpu/VirtualFluidsCore/CoProcessors/MPIIOMigrationCoProcessor.cpp
index b4314e0162a21f8cb5af48399f9efb04abb2ecfa..69cc8795bb7fdb4791420473a242a0f1ff96a06d 100644
--- a/src/cpu/VirtualFluidsCore/CoProcessors/MPIIOMigrationCoProcessor.cpp
+++ b/src/cpu/VirtualFluidsCore/CoProcessors/MPIIOMigrationCoProcessor.cpp
@@ -1639,7 +1639,7 @@ void MPIIOMigrationCoProcessor::readDataSet(int step)
                            << Utilities::getPhysMemUsedByMe() / 1073741824.0 << " GB");
     }
 
-    size_t index = 0, vectorSize = 0;
+    size_t index = 0;
     std::vector<double> vectorsOfValuesF1, vectorsOfValuesF2, vectorsOfValuesF3;
     std::vector<double> vectorsOfValuesH1, vectorsOfValuesH2, vectorsOfValuesH3;
 
diff --git a/src/cpu/VirtualFluidsCore/LBM/MultiphaseScratchCumulantLBMKernel.cpp b/src/cpu/VirtualFluidsCore/LBM/MultiphaseScratchCumulantLBMKernel.cpp
index ce8b66cb5ad2873fbf04fe1ed5a2499259903acb..505007e0cc2c7ef8238956568224125e046aafa1 100644
--- a/src/cpu/VirtualFluidsCore/LBM/MultiphaseScratchCumulantLBMKernel.cpp
+++ b/src/cpu/VirtualFluidsCore/LBM/MultiphaseScratchCumulantLBMKernel.cpp
@@ -365,10 +365,11 @@ void MultiphaseScratchCumulantLBMKernel::calculate(int step)
 			   LBMReal m0, m1, m2;
 			   LBMReal rhoRef=c1;
 
-			  //LBMReal 
-			   LBMReal drho = (mfaaa + mfaac + mfaca + mfcaa + mfacc + mfcac + mfccc + mfcca)
-				   + (mfaab + mfacb + mfcab + mfccb) + (mfaba + mfabc + mfcba + mfcbc) + (mfbaa + mfbac + mfbca + mfbcc)
-				   + (mfabb + mfcbb) + (mfbab + mfbcb) + (mfbba + mfbbc) + mfbbb;
+			  //LBMReal
+			  // FIXME: warning: unused variable 'drho'
+//			   LBMReal drho = (mfaaa + mfaac + mfaca + mfcaa + mfacc + mfcac + mfccc + mfcca)
+//				   + (mfaab + mfacb + mfcab + mfccb) + (mfaba + mfabc + mfcba + mfcbc) + (mfbaa + mfbac + mfbca + mfbcc)
+//				   + (mfabb + mfcbb) + (mfbab + mfbcb) + (mfbba + mfbbc) + mfbbb;
 
 			   LBMReal vvx = ((((mfccc - mfaaa) + (mfcac - mfaca)) + ((mfcaa - mfacc) + (mfcca - mfaac))) +
 				   (((mfcba - mfabc) + (mfcbc - mfaba)) + ((mfcab - mfacb) + (mfccb - mfaab))) +