samples\operator\MatMulLeakyReluCustomSample\KernelLaunch\MatMulLeakyReluInvocation这个样例中的blockDim为什么要设置成2，

我把main.cpp和......_tiling.cpp中的blockDim改为4、8时会有一个报ERROR：

[ERROR][CORE_3][pid 83550] error happened! =========  

SIGSEGV Signal (Invalid memory reference) catched, backtrace info: 

[#0] 0x0000000000408a64: handler(int) at /usr/local/Ascend/ascend-toolkit/latest/tools/tikicpulib/lib/include/kern_fwk.h:98 

[SUCCESS][CORE_0][pid 83547] exit success! 

[SUCCESS][CORE_1][pid 83548] exit success! 

[SUCCESS][CORE_2][pid 83549] exit success! 

0732b3edea1fa6bbcb8263df4a40b3b1  output/cpp_cpu_output.bin 

69f943125c74bd14bbe56b74f137cbea  output/golden.bin 

[ERROR] result error