Intel® oneAPI Deep Neural Network Developer Guide and Reference
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Concat
General
Concat operation concatenates 
 tensors over axis (here designated 
) and is defined as (the variable names follow the standard Naming Conventions):
 
   where 
.
Operation attributes
Attribute Name  |  
        Description  |  
        Value Type  |  
        Supported Values  |  
        Required or Optional  |  
       
|---|---|---|---|---|
Specifies dimension along which concatenation happens.  |  
        s64  |  
        A s64 value in the range of [-r, r-1] where r = rank(src)  |  
        Required  |  
       
Execution arguments
The inputs and outputs must be provided according to below index order when constructing an operation.
Inputs
Index  |  
        Argument Name  |  
        Required or Optional  |  
       
|---|---|---|
0  |  
        src_i  |  
        Required  |  
       
Outputs
Index  |  
        Argument Name  |  
        Required or Optional  |  
       
|---|---|---|
0  |  
        dst  |  
        Required  |  
       
Supported data types
Concat operation supports the following data type combinations.
Src_i  |  
        Dst  |  
       
|---|---|
f32  |  
        f32  |  
       
f16  |  
        f16  |  
       
bf16  |  
        bf16  |