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Remove gTestFastRelaxed Dependencies in Brute Force (#807)

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* The global variable `gTestFastRelaxed` has state which is used to
control the behaviour of the compiler flag `-cl-fast-relaxed-math` and
the precision testing of relaxed, fp32 and fp64 types. This is confusing
since the global variable is being set and read in different translation
units, making it very difficult to reason about the logic of the brute
force framework. It is particular difficult to follow since the global
variables is cached and then turned off in the case of fp32 and f64 in
order to use the same code path as relaxed testing, after it is then
turned back on.

* Remove uses of the global variable outside of `main.cpp` (the global
variable remains in use within `main.cpp` since it is a command line
option and used to turn of relaxed testing completely). Replace all uses
of the global variable with boolean `relaxedMode` which is passed as a
function paramter but replaces `gTestFastRelaxed` semantically.
This commit is contained in:
Jack Frankland
2020-06-04 10:44:39 +01:00
committed by GitHub
parent 519f658b51
commit ecee2c18d2
16 changed files with 480 additions and 288 deletions
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64
test_conformance/math_brute_force/unary.cpp
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@@ -22,16 +22,20 @@
#include <sys/time.h>
#endif
int TestFunc_Float_Float(const Func *f, MTdata);
int TestFunc_Double_Double(const Func *f, MTdata);
int TestFunc_Float_Float(const Func *f, MTdata, bool relaxedMode);
int TestFunc_Double_Double(const Func *f, MTdata, bool relaxedMode);
extern const vtbl _unary = { "unary", TestFunc_Float_Float,
TestFunc_Double_Double };
static int BuildKernel( const char *name, int vectorSize, cl_uint kernel_count, cl_kernel *k, cl_program *p );
static int BuildKernelDouble( const char *name, int vectorSize, cl_uint kernel_count, cl_kernel *k, cl_program *p );
static int BuildKernel(const char *name, int vectorSize, cl_uint kernel_count,
cl_kernel *k, cl_program *p, bool relaxedMode);
static int BuildKernelDouble(const char *name, int vectorSize,
cl_uint kernel_count, cl_kernel *k, cl_program *p,
bool relaxedMode);
static int BuildKernel( const char *name, int vectorSize, cl_uint kernel_count, cl_kernel *k, cl_program *p )
static int BuildKernel(const char *name, int vectorSize, cl_uint kernel_count,
cl_kernel *k, cl_program *p, bool relaxedMode)
{
const char *c[] = {
"__kernel void math_kernel", sizeNames[vectorSize], "( __global float", sizeNames[vectorSize], "* out, __global float", sizeNames[vectorSize], "* in)\n"
@@ -89,10 +93,13 @@ static int BuildKernel( const char *name, int vectorSize, cl_uint kernel_count,
char testName[32];
snprintf( testName, sizeof( testName ) -1, "math_kernel%s", sizeNames[vectorSize] );
return MakeKernels(kern, (cl_uint) kernSize, testName, kernel_count, k, p);
return MakeKernels(kern, (cl_uint)kernSize, testName, kernel_count, k, p,
relaxedMode);
}
static int BuildKernelDouble( const char *name, int vectorSize, cl_uint kernel_count, cl_kernel *k, cl_program *p )
static int BuildKernelDouble(const char *name, int vectorSize,
cl_uint kernel_count, cl_kernel *k, cl_program *p,
bool relaxedMode)
{
const char *c[] = { "#pragma OPENCL EXTENSION cl_khr_fp64 : enable\n",
"__kernel void math_kernel", sizeNames[vectorSize], "( __global double", sizeNames[vectorSize], "* out, __global double", sizeNames[vectorSize], "* in)\n"
@@ -152,7 +159,8 @@ static int BuildKernelDouble( const char *name, int vectorSize, cl_uint kernel_c
char testName[32];
snprintf( testName, sizeof( testName ) -1, "math_kernel%s", sizeNames[vectorSize] );
return MakeKernels(kern, (cl_uint) kernSize, testName, kernel_count, k, p);
return MakeKernels(kern, (cl_uint)kernSize, testName, kernel_count, k, p,
relaxedMode);
}
typedef struct BuildKernelInfo
@@ -162,6 +170,7 @@ typedef struct BuildKernelInfo
cl_kernel **kernels;
cl_program *programs;
const char *nameInCode;
bool relaxedMode; // Whether to build with -cl-fast-relaxed-math.
}BuildKernelInfo;
static cl_int BuildKernel_FloatFn( cl_uint job_id, cl_uint thread_id UNUSED, void *p );
@@ -169,7 +178,8 @@ static cl_int BuildKernel_FloatFn( cl_uint job_id, cl_uint thread_id UNUSED, voi
{
BuildKernelInfo *info = (BuildKernelInfo*) p;
cl_uint i = info->offset + job_id;
return BuildKernel( info->nameInCode, i, info->kernel_count, info->kernels[i], info->programs + i );
return BuildKernel(info->nameInCode, i, info->kernel_count,
info->kernels[i], info->programs + i, info->relaxedMode);
}
static cl_int BuildKernel_DoubleFn( cl_uint job_id, cl_uint thread_id UNUSED, void *p );
@@ -177,7 +187,9 @@ static cl_int BuildKernel_DoubleFn( cl_uint job_id, cl_uint thread_id UNUSED, vo
{
BuildKernelInfo *info = (BuildKernelInfo*) p;
cl_uint i = info->offset + job_id;
return BuildKernelDouble( info->nameInCode, i, info->kernel_count, info->kernels[i], info->programs + i );
return BuildKernelDouble(info->nameInCode, i, info->kernel_count,
info->kernels[i], info->programs + i,
info->relaxedMode);
}
//Thread specific data for a worker thread
@@ -206,20 +218,22 @@ typedef struct TestInfo
int isRangeLimited; // 1 if the function is only to be evaluated over a range
float half_sin_cos_tan_limit;
bool relaxedMode; // True if test is to be run in relaxed mode, false
// otherwise.
}TestInfo;
static cl_int TestFloat( cl_uint job_id, cl_uint thread_id, void *p );
int TestFunc_Float_Float(const Func *f, MTdata d)
int TestFunc_Float_Float(const Func *f, MTdata d, bool relaxedMode)
{
TestInfo test_info;
cl_int error;
size_t i, j;
float maxError = 0.0f;
double maxErrorVal = 0.0;
int skipTestingRelaxed = ( gTestFastRelaxed && strcmp(f->name,"tan") == 0 );
int skipTestingRelaxed = (relaxedMode && strcmp(f->name, "tan") == 0);
logFunctionInfo(f->name,sizeof(cl_float),gTestFastRelaxed);
logFunctionInfo(f->name, sizeof(cl_float), relaxedMode);
// Init test_info
memset( &test_info, 0, sizeof( test_info ) );
@@ -311,7 +325,10 @@ int TestFunc_Float_Float(const Func *f, MTdata d)
// Init the kernels
{
BuildKernelInfo build_info = { gMinVectorSizeIndex, test_info.threadCount, test_info.k, test_info.programs, f->nameInCode };
BuildKernelInfo build_info = {
gMinVectorSizeIndex, test_info.threadCount, test_info.k,
test_info.programs, f->nameInCode, relaxedMode
};
if( (error = ThreadPool_Do( BuildKernel_FloatFn, gMaxVectorSizeIndex - gMinVectorSizeIndex, &build_info ) ))
goto exit;
}
@@ -448,7 +465,8 @@ static cl_int TestFloat( cl_uint job_id, cl_uint thread_id, void *data )
float ulps = job->ulps;
fptr func = job->f->func;
const char * fname = job->f->name;
if ( gTestFastRelaxed )
bool relaxedMode = job->relaxedMode;
if (relaxedMode)
{
ulps = job->f->relaxed_error;
func = job->f->rfunc;
@@ -483,7 +501,7 @@ static cl_int TestFloat( cl_uint job_id, cl_uint thread_id, void *data )
for( j = 0; j < buffer_elements; j++ )
{
p[j] = base + j * scale;
if( gTestFastRelaxed )
if (relaxedMode)
{
float p_j = *(float *) &p[j];
if ( strcmp(fname,"sin")==0 || strcmp(fname,"cos")==0 ) //the domain of the function is [-pi,pi]
@@ -600,7 +618,7 @@ static cl_int TestFloat( cl_uint job_id, cl_uint thread_id, void *data )
{
fail = 0;
}
else if( gTestFastRelaxed )
else if (relaxedMode)
{
if ( strcmp(fname,"sin")==0 || strcmp(fname,"cos")==0 )
{
@@ -680,7 +698,7 @@ static cl_int TestFloat( cl_uint job_id, cl_uint thread_id, void *data )
typedef int (*CheckForSubnormal) (double,float); // If we are in fast relaxed math, we have a different calculation for the subnormal threshold.
CheckForSubnormal isFloatResultSubnormalPtr;
if ( gTestFastRelaxed )
if (relaxedMode)
{
isFloatResultSubnormalPtr = &IsFloatResultSubnormalAbsError;
}
@@ -981,7 +999,7 @@ static cl_int TestDouble( cl_uint job_id, cl_uint thread_id, void *data )
return CL_SUCCESS;
}
int TestFunc_Double_Double(const Func *f, MTdata d)
int TestFunc_Double_Double(const Func *f, MTdata d, bool relaxedMode)
{
TestInfo test_info;
cl_int error;
@@ -995,7 +1013,7 @@ int TestFunc_Double_Double(const Func *f, MTdata d)
double end_time;
#endif
logFunctionInfo(f->name,sizeof(cl_double),gTestFastRelaxed);
logFunctionInfo(f->name, sizeof(cl_double), relaxedMode);
// Init test_info
memset( &test_info, 0, sizeof( test_info ) );
test_info.threadCount = GetThreadCount();
@@ -1020,6 +1038,7 @@ int TestFunc_Double_Double(const Func *f, MTdata d)
test_info.f = f;
test_info.ulps = f->double_ulps;
test_info.ftz = f->ftz || gForceFTZ;
test_info.relaxedMode = relaxedMode;
// cl_kernels aren't thread safe, so we make one for each vector size for every thread
for( i = gMinVectorSizeIndex; i < gMaxVectorSizeIndex; i++ )
@@ -1073,7 +1092,10 @@ int TestFunc_Double_Double(const Func *f, MTdata d)
// Init the kernels
{
BuildKernelInfo build_info = { gMinVectorSizeIndex, test_info.threadCount, test_info.k, test_info.programs, f->nameInCode };
BuildKernelInfo build_info = {
gMinVectorSizeIndex, test_info.threadCount, test_info.k,
test_info.programs, f->nameInCode, relaxedMode
};
if( (error = ThreadPool_Do( BuildKernel_DoubleFn, gMaxVectorSizeIndex - gMinVectorSizeIndex, &build_info ) ))
goto exit;
}