OpenCL does not run correctly with AMD platform - opencl

Question

I guess the problem of random result maybe comes from synchronizaion.
So I use some events to synchronize the command queue.
cl::Event evtWriteBufferFinished;
errNum = queues[0].enqueueWriteBuffer(buffers[0], CL_FALSE, 0, sizeof(cl_int)*NUM_BUFFER_ELEMENTS*devices.size(), inputOutput, NULL, &evtWriteBufferFinished);
std::vector<cl::Event> events;
for (size_t i = 0; i < queues.size(); i++)
{
cl::Event evt;
std::vector<cl::Event> waitEvts(1, evtWriteBufferFinished);
errNum = queues[i].enqueueNDRangeKernel(kernels[i],
cl::NullRange,
cl::NDRange(NUM_BUFFER_ELEMENTS),
cl::NDRange(1), &waitEvts, &evt);
events.push_back(evt);
}
cl::Event evtReadBufferFinished;
errNum = queues[0].enqueueReadBuffer(buffers[0], CL_FALSE, 0, sizeof(cl_int)*NUM_BUFFER_ELEMENTS*devices.size(), inputOutput, &events, &evtReadBufferFinished);
evtReadBufferFinished.wait();
There is no random result again!
But new question is occured:
CL_DEVICE_TYPE: 4
CL_DEVICE_TYPE: 2
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128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255
The kernel on CPU is not running anyway.
I inspect the code, and test:
std::vector<cl::Platform> platforms;
cl_int errNum = cl::Platform::get(&platforms);
if (errNum != CL_SUCCESS || platforms.empty())
{
std::cerr << "Failed to find any OpenCL platforms." << std::endl;
return 1;
}
auto platform = platforms[0];
If I use platforms[0], the bad result is returned.
If I use platforms[1], there is no problem!
In my laptop:
platforms[0] is "AMD Accelerated Parallel Processing"
platforms[1] is "Intel(R) OpenCL"
Why?
How can I solve this problem? Thanks