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/*************************************************************************
* Copyright (c) 2022 Advanced Micro Devices, Inc. All rights reserved.
*
* See LICENSE.txt for license information
************************************************************************/
#include "PtrUnion.hpp"
namespace RcclUnitTesting
{
size_t DataTypeToBytes(ncclDataType_t const dataType)
{
switch (dataType)
{
case ncclInt8: return 1;
case ncclUint8: return 1;
case ncclInt32: return 4;
case ncclUint32: return 4;
case ncclInt64: return 8;
case ncclUint64: return 8;
case ncclFloat16: return 2;
case ncclFloat32: return 4;
case ncclFloat64: return 8;
case ncclBfloat16: return 2;
default:
ERROR("Unsupported datatype (%d)\n", dataType);
exit(0);
}
}
ErrCode PtrUnion::Attach(void *ptr)
{
this->ptr = ptr;
return TEST_SUCCESS;
}
ErrCode PtrUnion::Attach(PtrUnion ptrUnion)
{
this->ptr = ptrUnion.ptr;
return TEST_SUCCESS;
}
ErrCode PtrUnion::AllocateGpuMem(size_t const numBytes, bool const useManagedMem)
{
if (numBytes)
{
if (useManagedMem)
{
if (hipMallocManaged(&I1, numBytes) != hipSuccess)
{
ERROR("Unable to allocate managed memory of GPU memory (%lu bytes)\n", numBytes);
return TEST_FAIL;
}
}
else
{
if (hipMalloc(&I1, numBytes) != hipSuccess)
{
ERROR("Unable to allocate memory of GPU memory (%lu bytes)\n", numBytes);
return TEST_FAIL;
}
}
}
return TEST_SUCCESS;
}
ErrCode PtrUnion::AllocateCpuMem(size_t const numBytes)
{
if (numBytes)
{
this->ptr = calloc(numBytes, 1);
if (!ptr)
{
ERROR("Unable to allocate memory (%lu bytes)\n", numBytes);
return TEST_FAIL;
}
}
return TEST_SUCCESS;
}
ErrCode PtrUnion::FreeGpuMem()
{
if (this->ptr != nullptr)
{
hipFree(this->ptr);
this->ptr = nullptr;
}
return TEST_SUCCESS;
}
ErrCode PtrUnion::FreeCpuMem()
{
if (this->ptr != nullptr)
{
free(this->ptr);
this->ptr = nullptr;
}
return TEST_SUCCESS;
}
ErrCode PtrUnion::ClearGpuMem(size_t const numBytes)
{
if (hipMemset(this->ptr, 0, numBytes) != hipSuccess)
{
ERROR("Unable to call hipMemset\n");
return TEST_FAIL;
}
hipStreamSynchronize(NULL);
return TEST_SUCCESS;
}
ErrCode PtrUnion::ClearCpuMem(size_t const numBytes)
{
memset(this->ptr, 0, numBytes);
return TEST_SUCCESS;
}
ErrCode PtrUnion::FillPattern(ncclDataType_t const dataType,
size_t const numElements,
int const globalRank,
bool const isGpuMem)
{
PtrUnion temp;
size_t const numBytes = numElements * DataTypeToBytes(dataType);
// If this is GPU memory, create a CPU temp buffer otherwise fill CPU memory directly
if (isGpuMem)
temp.AllocateCpuMem(numBytes);
else
temp.Attach(this->ptr);
for (int i = 0; i < numElements; i++)
{
int valueI = (globalRank + i) % 256;
double valueF = 1.0L/((double)valueI+1.0L);
temp.Set(dataType, i, valueI, valueF);
}
// If this is GPU memory, copy from CPU temp buffer
if (isGpuMem)
{
if (hipMemcpy(this->ptr, temp.ptr, numBytes, hipMemcpyHostToDevice) != hipSuccess)
{
ERROR("Unable to fill input with pattern for rank %d\n", globalRank);
return TEST_FAIL;
}
temp.FreeCpuMem();
}
return TEST_SUCCESS;
}
ErrCode PtrUnion::Set(ncclDataType_t const dataType, int const idx, int valueI, double valueF)
{
switch (dataType)
{
case ncclInt8: I1[idx] = valueI; break;
case ncclUint8: U1[idx] = valueI; break;
case ncclInt32: I4[idx] = valueI; break;
case ncclUint32: U4[idx] = valueI; break;
case ncclInt64: I8[idx] = valueI; break;
case ncclUint64: U8[idx] = valueI; break;
case ncclFloat16: F2[idx] = __float2half(static_cast<float>(valueF)); break;
case ncclFloat32: F4[idx] = valueF; break;
case ncclFloat64: F8[idx] = valueF; break;
case ncclBfloat16: B2[idx] = rccl_bfloat16(static_cast<float>(valueF)); break;
default:
ERROR("Unsupported datatype\n");
return TEST_FAIL;
}
return TEST_SUCCESS;
}
ErrCode PtrUnion::Get(ncclDataType_t const dataType, int const idx, int& valueI, double& valueF) const
{
switch (dataType)
{
case ncclInt8: valueI = I1[idx]; break;
case ncclUint8: valueI = I1[idx]; break;
case ncclInt32: valueI = I4[idx]; break;
case ncclUint32: valueI = U4[idx]; break;
case ncclInt64: valueI = I8[idx]; break;
case ncclUint64: valueI = U8[idx]; break;
case ncclFloat16: valueF = __half2float(F2[idx]); break;
case ncclFloat32: valueF = F4[idx]; break;
case ncclFloat64: valueF = F8[idx]; break;
case ncclBfloat16: valueF = B2[idx]; break;
default:
ERROR("Unsupported datatype\n");
return TEST_FAIL;
}
return TEST_SUCCESS;
}
// Multiplies in-place each element by scalarsPerRank[rank]
ErrCode PtrUnion::Scale(ncclDataType_t const dataType,
size_t const numElements,
PtrUnion const& scalarsPerRank,
int const rank)
{
// If no scalars are provided do nothing
if (scalarsPerRank.ptr == nullptr) return TEST_SUCCESS;
for (size_t idx = 0; idx < numElements; ++idx)
{
switch (dataType)
{
case ncclInt8: I1[idx] *= scalarsPerRank.I1[rank]; break;
case ncclUint8: U1[idx] *= scalarsPerRank.U1[rank]; break;
case ncclInt32: I4[idx] *= scalarsPerRank.I4[rank]; break;
case ncclUint32: U4[idx] *= scalarsPerRank.U4[rank]; break;
case ncclInt64: I8[idx] *= scalarsPerRank.I8[rank]; break;
case ncclUint64: U8[idx] *= scalarsPerRank.U8[rank]; break;
case ncclFloat16: F2[idx] = __float2half(__half2float(F2[idx]) * __half2float(scalarsPerRank.F2[rank])); break;
case ncclFloat32: F4[idx] *= scalarsPerRank.F4[rank]; break;
case ncclFloat64: F8[idx] *= scalarsPerRank.F8[rank]; break;
case ncclBfloat16: B2[idx] *= scalarsPerRank.B2[rank]; break;
default:
ERROR("Unsupported datatype\n");
return TEST_FAIL;
}
}
return TEST_SUCCESS;
}
ErrCode PtrUnion::Reduce(ncclDataType_t const dataType,
size_t const numElements,
PtrUnion const& inputCpu,
ncclRedOp_t const op)
{
if (inputCpu.ptr == nullptr)
{
ERROR("Input pointer to Reduce should not be nullptr\n");
return TEST_FAIL;
}
for (size_t idx = 0; idx < numElements; ++idx)
{
switch (dataType)
{
case ncclInt8: I1[idx] = ReduceOp(op, I1[idx], inputCpu.I1[idx]); break;
case ncclUint8: U1[idx] = ReduceOp(op, U1[idx], inputCpu.U1[idx]); break;
case ncclInt32: I4[idx] = ReduceOp(op, I4[idx], inputCpu.I4[idx]); break;
case ncclUint32: U4[idx] = ReduceOp(op, U4[idx], inputCpu.U4[idx]); break;
case ncclInt64: I8[idx] = ReduceOp(op, I8[idx], inputCpu.I8[idx]); break;
case ncclUint64: U8[idx] = ReduceOp(op, U8[idx], inputCpu.U8[idx]); break;
case ncclFloat16: F2[idx] = __float2half(ReduceOp(op, __half2float(F2[idx]), __half2float(inputCpu.F2[idx]))); break;
case ncclFloat32: F4[idx] = ReduceOp(op, F4[idx], inputCpu.F4[idx]); break;
case ncclFloat64: F8[idx] = ReduceOp(op, F8[idx], inputCpu.F8[idx]); break;
case ncclBfloat16: B2[idx] = ReduceOp(op, B2[idx], inputCpu.B2[idx]); break;
default:
ERROR("Unsupported datatype\n");
return TEST_FAIL;
}
}
return TEST_SUCCESS;
}
ErrCode PtrUnion::DivideByInt(ncclDataType_t const dataType,
size_t const numElements,
int const divisor)
{
for (size_t idx = 0; idx < numElements; ++idx)
{
switch (dataType)
{
case ncclInt8: I1[idx] /= divisor; break;
case ncclUint8: U1[idx] /= divisor; break;
case ncclInt32: I4[idx] /= divisor; break;
case ncclUint32: U4[idx] /= divisor; break;
case ncclInt64: I8[idx] /= divisor; break;
case ncclUint64: U8[idx] /= divisor; break;
case ncclFloat16: F2[idx] = __float2half(__half2float(F2[idx])/divisor); break;
case ncclFloat32: F4[idx] /= divisor; break;
case ncclFloat64: F8[idx] /= divisor; break;
case ncclBfloat16: B2[idx] = (rccl_bfloat16((float)(B2[idx]) / divisor)); break;
default:
ERROR("Unsupported datatype\n");
return TEST_FAIL;
}
}
return TEST_SUCCESS;
}
ErrCode PtrUnion::IsEqual(ncclDataType_t const dataType,
size_t const numElements,
PtrUnion const& expected,
bool const verbose,
bool& isMatch)
{
isMatch = true;
size_t idx = 0;
for (idx = 0; idx < numElements; ++idx)
{
switch (dataType)
{
case ncclInt8: isMatch = (I1[idx] == expected.I1[idx]); break;
case ncclUint8: isMatch = (U1[idx] == expected.U1[idx]); break;
case ncclInt32: isMatch = (I4[idx] == expected.I4[idx]); break;
case ncclUint32: isMatch = (U4[idx] == expected.U4[idx]); break;
case ncclInt64: isMatch = (I8[idx] == expected.I8[idx]); break;
case ncclUint64: isMatch = (U8[idx] == expected.U8[idx]); break;
case ncclFloat16: isMatch = (fabs(__half2float(F2[idx]) - __half2float(expected.F2[idx])) < 9e-2); break;
case ncclFloat32: isMatch = (fabs(F4[idx] - expected.F4[idx]) < 1e-5); break;
case ncclFloat64: isMatch = (fabs(F8[idx] - expected.F8[idx]) < 1e-12); break;
case ncclBfloat16: isMatch = (fabs((float)B2[idx] - (float)expected.B2[idx]) < 9e-2); break;
default:
ERROR("Unsupported datatype\n");
return TEST_FAIL;
}
if (!isMatch) break;
}
if (verbose && !isMatch)
{
switch (dataType)
{
case ncclInt8:
ERROR("Expected output: %d. Actual output: %d at index %lu\n", expected.I1[idx], I1[idx], idx); break;
case ncclUint8:
ERROR("Expected output: %u. Actual output: %u at index %lu\n", expected.U1[idx], U1[idx], idx); break;
case ncclInt32:
ERROR("Expected output: %d. Actual output: %d at index %lu\n", expected.I4[idx], I4[idx], idx); break;
case ncclUint32:
ERROR("Expected output: %u. Actual output: %u at index %lu\n", expected.U4[idx], U4[idx], idx); break;
case ncclInt64:
ERROR("Expected output: %ld. Actual output: %ld at index %lu\n", expected.I8[idx], I8[idx], idx); break;
case ncclUint64:
ERROR("Expected output: %lu. Actual output: %lu at index %lu\n", expected.U8[idx], U8[idx], idx); break;
case ncclFloat16:
ERROR("Expected output: %f. Actual output: %f at index %lu\n", __half2float(expected.F2[idx]), __half2float(F2[idx]), idx); break;
case ncclFloat32:
ERROR("Expected output: %f. Actual output: %f at index %lu\n", expected.F4[idx], F4[idx], idx); break;
case ncclFloat64:
ERROR("Expected output: %lf. Actual output: %lf at index %lu\n", expected.F8[idx], F8[idx], idx); break;
case ncclBfloat16:
ERROR("Expected output: %f. Actual output: %f at index %lu\n", (float)expected.B2[idx], (float)B2[idx], idx); break;
default:
break;
}
}
return TEST_SUCCESS;
}
std::string PtrUnion::ToString(ncclDataType_t const dataType,
size_t const numElements) const
{
std::stringstream ss;
for (int i = 0; i < numElements; i++)
{
if (i) ss << " ";
switch (dataType)
{
case ncclInt8: ss << I1[i]; break;
case ncclUint8: ss << U1[i]; break;
case ncclInt32: ss << I4[i]; break;
case ncclUint32: ss << U4[i]; break;
case ncclInt64: ss << I8[i]; break;
case ncclUint64: ss << U8[i]; break;
case ncclFloat16: ss << __half2float(F2[i]); break;
case ncclFloat32: ss << F4[i]; break;
case ncclFloat64: ss << F8[i]; break;
case ncclBfloat16: ss << (float)B2[i]; break;
default: break;
}
}
return ss.str();
}
}
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