Invoking kernels with single boolean fields in kernel causes NoSuchFieldError in JNI

What steps will reproduce the problem?
1. Run TestBoolean class (see attached file TestBoolean.java) on APARAPI (r1674)

What is the expected output? What do you see instead?

I expect:

[0, 1, 2, 3, 4, 5, 6, 7, 8, 9]

Instead, I got:

Exception in thread "main" java.lang.NoSuchFieldError: ok
    at com.amd.aparapi.internal.jni.KernelRunnerJNI.runKernelJNI(Native Method)
    at com.amd.aparapi.internal.kernel.KernelRunner.executeOpenCL(KernelRunner.java:870)
    at com.amd.aparapi.internal.kernel.KernelRunner.execute(KernelRunner.java:1165)
    at com.amd.aparapi.Kernel.execute(Kernel.java:1985)
    at com.amd.aparapi.Kernel.execute(Kernel.java:1916)
    at com.amd.aparapi.Kernel.execute(Kernel.java:1901)
    at com.amd.aparapi.TestBoolean.main(TestBoolean.java:18)

What version of the product are you using? On what operating system?

APARAPI Win64 (Aparapi_2014_04_29_Win64.zip, got from subversion)

Windows 7 Professional

GPU environment is a Nvidia Quadro FX880M with 1 GiB, driver: ForceWare: 327.02 

Please provide any additional information below.

OpenCL code seems OK:

typedef struct This_s{
   char  ok;
   __global int *val$output;
   int passid;
}This;
int get_pass_id(This *this){
   return this->passid;
}
__kernel void run(
   char  ok, 
   __global int *val$output, 
   int passid
){
   This thisStruct;
   This* this=&thisStruct;
   this->ok = ok;
   this->val$output = val$output;
   this->passid = passid;
   {
      if (this->ok!=0){
         this->val$output[get_global_id(0)]  = get_global_id(0);
      } else {
         this->val$output[get_global_id(0)]  = 0;
      }
      return;
   }
}

(given that APARAPI uses "char" to map "boolean")

[My curiosity: why does APARAPI use "char" type here instead of OpenCL's 
"bool"?]

If I try to substituite boolean with an int having hardcoded true/false values 
(as 1/0), like in TestHomeGrownBoolean (see attached file), result is ok ("[0, 
1, 2, 3, 4, 5, 6, 7, 8, 9]")
and generated OpenCL code is somewhat the same as above, except for "ok" var's 
type:

typedef struct This_s{
   int ok;
   __global int *val$output;
   int passid;
}This;
int get_pass_id(This *this){
   return this->passid;
}
__kernel void run(
   int ok, 
   __global int *val$output, 
   int passid
){
   This thisStruct;
   This* this=&thisStruct;
   this->ok = ok;
   this->val$output = val$output;
   this->passid = passid;
   {
      if (this->ok==1){
         this->val$output[get_global_id(0)]  = get_global_id(0);
      } else {
         this->val$output[get_global_id(0)]  = 0;
      }
      return;
   }
}

Original issue reported on code.google.com by lgallucci@gmail.com on 29 May 2014 at 4:30

Attachments:

rzel / aparapi

Invoking kernels with single boolean fields in kernel causes NoSuchFieldError in JNI #146