Use seed as a runtime arg

include/ck/utility/data_type.hpp

@@ -1148,8 +1148,8 @@ inline __host__ __device__ constexpr bhalf_t bf16_convert_rtn<bhalf_t, half_t>(h
 
 // Pseudo random number generator
 // version for fp32
-template <typename T, uint32_t seed, std::enable_if_t<std::is_same<float, T>{}, bool> = false>
-__host__ __device__ uint32_t prand_generator(index_t id, T val)
+template <typename T, uint32_t seed_t, std::enable_if_t<std::is_same<float, T>{}, bool> = false>
+__host__ __device__ uint32_t prand_generator(index_t id, T val, uint32_t seed = seed_t)
 {
     // uint32_t x         = reinterpret_cast<uint32_t&>(val);
     uint32_t x         = *(reinterpret_cast<uint32_t*>(&val));
@@ -1165,8 +1165,8 @@ __host__ __device__ uint32_t prand_generator(index_t id, T val)
 }
 
 // version for fp16
-template <typename T, uint32_t seed, std::enable_if_t<std::is_same<half_t, T>{}, bool> = false>
-__host__ __device__ uint32_t prand_generator(index_t id, T val)
+template <typename T, uint32_t seed_t, std::enable_if_t<std::is_same<half_t, T>{}, bool> = false>
+__host__ __device__ uint32_t prand_generator(index_t id, T val, uint32_t seed = seed_t)
 {
     // uint16_t x         = reinterpret_cast<uint16_t&>(val);
     uint16_t x         = *(reinterpret_cast<uint16_t*>(&val));
@@ -1182,12 +1182,13 @@ __host__ __device__ uint32_t prand_generator(index_t id, T val)
 
 // return 0 if data is not fp16 or fp32
 template <typename T,
-          uint32_t seed,
+          uint32_t seed_t,
           std::enable_if_t<!(std::is_same<float, T>{} || std::is_same<half_t, T>{}), bool> = false>
-__host__ __device__ uint32_t prand_generator(int id, T val)
+__host__ __device__ uint32_t prand_generator(int id, T val, uint32_t seed = seed_t)
 {
     std::ignore = id;
     std::ignore = val;
+    std::ignore = seed;
 
     return 0;
 }