Fixed errors in mixed precision mode

platforms/opencl/src/kernels/andersenThermostat.cl

@@ -11,7 +11,7 @@ __kernel void applyAndersenThermostat(float collisionFrequency, float kT, __glob
         float4 selectRand = random[randomIndex+atomGroups[index]];
         float4 velRand = random[randomIndex+index];
         real scale = (selectRand.w > -randomRange && selectRand.w < randomRange ? 0 : 1);
-        real add = (1-scale)*SQRT(kT*velocity.w);
+        real add = (1-scale)*sqrt(kT*velocity.w);
         velocity.x = scale*velocity.x + add*velRand.x;
         velocity.y = scale*velocity.y + add*velRand.y;
         velocity.z = scale*velocity.z + add*velRand.z;

platforms/opencl/src/kernels/brownian.cl

@@ -8,9 +8,9 @@ __kernel void integrateBrownianPart1(mixed tauDeltaT, mixed noiseAmplitude, __gl
     for (int index = get_global_id(0); index < NUM_ATOMS; index += get_global_size(0)) {
         mixed invMass = velm[index].w;
         if (invMass != 0) {
-            posDelta[index] = (mixed4) (tauDeltaT*invMass*force[index].x + noiseAmplitude*SQRT(invMass)*random[randomIndex].x,
-                                        tauDeltaT*invMass*force[index].y + noiseAmplitude*SQRT(invMass)*random[randomIndex].y,
-                                        tauDeltaT*invMass*force[index].z + noiseAmplitude*SQRT(invMass)*random[randomIndex].z, 0);
+            posDelta[index] = (mixed4) (tauDeltaT*invMass*force[index].x + noiseAmplitude*sqrt(invMass)*random[randomIndex].x,
+                                        tauDeltaT*invMass*force[index].y + noiseAmplitude*sqrt(invMass)*random[randomIndex].y,
+                                        tauDeltaT*invMass*force[index].z + noiseAmplitude*sqrt(invMass)*random[randomIndex].z, 0);
         }
         randomIndex += get_global_size(0);
     }