user: Demonstrate the C code that generates the assembly output below:

```asm
<calculateEddyViscosity_Smagorinsky2P_3D>:
  endbr64
  push   %r15
  push   %r14
  push   %r13
  push   %r12
  push   %rbp
  push   %rbx
  sub    $0x68,%rsp
  mov    %rdx,0x38(%rsp)
  mov    0xa0(%rsp),%rbp
  movsd  %xmm0,0x8(%rsp)
  movsd  %xmm1,0x10(%rsp)
  movsd  %xmm2,0x18(%rsp)
  test   %edi,%edi
  jle    L37
  mov    %esi,%eax
  test   %esi,%esi
  jle    L37
  mov    %rdx,%rbx
  movslq %esi,%rdx
  sub    $0x1,%eax
  mov    %r8,%r13
  shl    $0x3,%rdx
  lea    0x8(%rbx,%rax,8),%rax
  mov    %rcx,%r15
  mov    %r9,%r14
  mov    %rdx,0x48(%rsp)
  mov    0xa8(%rsp),%rdx
  mov    %rax,0x20(%rsp)
  mov    %rdx,0x30(%rsp)
  lea    (%rsi,%rsi,2),%edx
  lea    -0x1(%rdi),%esi
  movq   $0x0,0x28(%rsp)
  movslq %edx,%rdx
  shl    $0x3,%rdx
  mov    %rdx,0x40(%rsp)
  lea    0x8(%rcx,%rsi,8),%rdx
  mov    %rdx,0x50(%rsp)
  nopw   0x0(%rax,%rax,1)
L54:
  mov    0x28(%rsp),%rax
  mov    0x30(%rsp),%rbx
  mov    %rbp,0xa0(%rsp)
  mov    0x38(%rsp),%r12
  mov    %rbx,%rbp
  mov    %rax,%rbx
  mov    %r15,%rax
  mov    0xa0(%rsp),%r15
  nopl   0x0(%rax,%rax,1)
L27:
  movsd  (%r12),%xmm1
  movsd  0x18(%rsp),%xmm0
  mov    %rax,(%rsp)
  call   <smoothedHeaviside@plt>
  movsd  D4(%rip),%xmm2
  movsd  0x0(%r13,%rbx,1),%xmm1
  movsd  0x8(%r13,%rbx,1),%xmm6
  addsd  (%r14,%rbx,1),%xmm6
  mulsd  %xmm1,%xmm1
  subsd  %xmm0,%xmm2
  mov    D3(%rip),%rax
  movsd  0x8(%r14,%rbx,1),%xmm8
  mulsd  0x10(%rsp),%xmm0
  movsd  0x10(%r15,%rbx,1),%xmm7
  mulsd  0x8(%rsp),%xmm2
  movq   %rax,%xmm3
  movsd  0x10(%r13,%rbx,1),%xmm5
  mulsd  %xmm8,%xmm8
  addsd  (%r15,%rbx,1),%xmm5
  mov    (%rsp),%rax
  mulsd  %xmm7,%xmm7
  movsd  0x10(%r14,%rbx,1),%xmm4
  addsd  0x8(%r15,%rbx,1),%xmm4
  addsd  %xmm0,%xmm2
  movapd %xmm1,%xmm0
  movapd %xmm6,%xmm1
  mulsd  %xmm3,%xmm1
  addsd  %xmm8,%xmm0
  addsd  %xmm7,%xmm0
  mulsd  %xmm6,%xmm1
  addsd  %xmm1,%xmm0
  movapd %xmm5,%xmm1
  mulsd  %xmm3,%xmm1
  mulsd  %xmm5,%xmm1
  pxor   %xmm5,%xmm5
  addsd  %xmm1,%xmm0
  movapd %xmm4,%xmm1
  mulsd  %xmm3,%xmm1
  mulsd  %xmm4,%xmm1
  addsd  %xmm1,%xmm0
  addsd  %xmm0,%xmm0
  ucomisd %xmm0,%xmm5
  ja     L36
  mulsd  %xmm2,%xmm2
  movsd  (%rax),%xmm1
  sqrtsd %xmm0,%xmm0
  mulsd  %xmm1,%xmm2
  mulsd  %xmm1,%xmm2
  mulsd  %xmm2,%xmm0
L19:
  movsd  %xmm0,0x0(%rbp)
  add    $0x8,%r12
  add    $0x8,%rbp
  add    $0x18,%rbx
  cmp    0x20(%rsp),%r12
  jne    L27
  mov    %r15,%rbp
  mov    %rax,%r15
  mov    0x48(%rsp),%rcx
  mov    0x40(%rsp),%rdi
  add    %rcx,0x30(%rsp)
  add    $0x8,%r15
  add    %rdi,0x28(%rsp)
  cmp    0x50(%rsp),%r15
  jne    L54
L37:
  add    $0x68,%rsp
  pop    %rbx
  pop    %rbp
  pop    %r12
  pop    %r13
  pop    %r14
  pop    %r15
  ret
L36:
  mov    %rax,0x58(%rsp)
  movsd  %xmm2,(%rsp)
  call   <sqrt@plt>
  movsd  (%rsp),%xmm2
  mov    0x58(%rsp),%rax
  movapd %xmm0,%xmm1
  mulsd  %xmm2,%xmm2
  movsd  (%rax),%xmm0
  mulsd  %xmm0,%xmm2
  mulsd  %xmm2,%xmm0
  mulsd  %xmm1,%xmm0
  jmp    L19
```

tool_calls: name: read_data
arguments: tag: D4
type_guessed: f64
name: read_data
arguments: tag: D3
type_guessed: f64

tool: D4: 1

tool: D3: 0.5

assistant: ```c
void calculateEddyViscosity_Smagorinsky2P_3D(const int nElements_global, const int nQuadraturePoints_element, const double smagorinskyConstant_0, const double smagorinskyConstant_1, const double eps, const double *phi_ls, const double *h_e, const double *grad_u, const double *grad_v, const double *grad_w, double *nu_t) {
  int eN, k;
  const int nSpace = 3;
  double norm_S2, norm_S, H_smc, smc;
  for (eN = 0; eN < nElements_global; eN++) {
    for (k = 0; k < nQuadraturePoints_element; k++) {
      H_smc = smoothedHeaviside(eps, phi_ls[k]);
      smc = smagorinskyConstant_0 * (1.0 - H_smc) + smagorinskyConstant_1 * H_smc;
      norm_S2 = grad_u[eN * nQuadraturePoints_element * nSpace + k * nSpace + 0] * grad_u[eN * nQuadraturePoints_element * nSpace + k * nSpace + 0] + grad_v[eN * nQuadraturePoints_element * nSpace + k * nSpace + 1] * grad_v[eN * nQuadraturePoints_element * nSpace + k * nSpace + 1] + grad_w[eN * nQuadraturePoints_element * nSpace + k * nSpace + 2] * grad_w[eN * nQuadraturePoints_element * nSpace + k * nSpace + 2] + 0.5 * (grad_u[eN * nQuadraturePoints_element * nSpace + k * nSpace + 1] + grad_v[eN * nQuadraturePoints_element * nSpace + k * nSpace + 0]) * (grad_u[eN * nQuadraturePoints_element * nSpace + k * nSpace + 1] + grad_v[eN * nQuadraturePoints_element * nSpace + k * nSpace + 0]) + 0.5 * (grad_u[eN * nQuadraturePoints_element * nSpace + k * nSpace + 2] + grad_w[eN * nQuadraturePoints_element * nSpace + k * nSpace + 0]) * (grad_u[eN * nQuadraturePoints_element * nSpace + k * nSpace + 2] + grad_w[eN * nQuadraturePoints_element * nSpace + k * nSpace + 0]) + 0.5 * (grad_v[eN * nQuadraturePoints_element * nSpace + k * nSpace + 2] + grad_w[eN * nQuadraturePoints_element * nSpace + k * nSpace + 1]) * (grad_v[eN * nQuadraturePoints_element * nSpace + k * nSpace + 2] + grad_w[eN * nQuadraturePoints_element * nSpace + k * nSpace + 1]);
      norm_S = sqrt(2.0 * norm_S2);
      nu_t[eN * nQuadraturePoints_element + k] = smc * smc * h_e[eN] * h_e[eN] * norm_S;
    }
  }
}
```